Review Schedule
Last reviewed May 19, 2026.
Next scheduled full review: Q1 2027. Product labels, formulas, COA access, and public disclosures may change between review cycles. Material corrections may be reviewed before the next annual update.
LPL
2026 Industry Report · Pet Longevity
Best Dog Longevity Supplements 2026
We scored 25 dog longevity supplements against the same eight criteria: dose transparency, independent testing, safety logic, formulation depth, and claim discipline. Public evidence only. Hollywood Elixir is scored separately as the publisher benchmark and is not counted in the numbered ranking below. Last reviewed May 19, 2026.
2026 Market Executive Summary
Dog longevity supplements are developing quickly, but most products still look closer to senior wellness than aging biology.
The dog longevity field is moving beyond generic senior multivitamins, but it has not fully matured. A few products now speak in NAD+, mitochondrial, antioxidant, senolytic, or multi-pathway terms; most still rely on ingredient-level logic, incomplete dosing visibility, or broad senior-wellness claims.
- If you want more good days with your senior pet: separate basic senior wellness from formulas that actually map to energy, mitochondria, NAD+, resilience, and daily vitality.
- If the science sounds exciting: check dose disclosure, species logic, and testing access before trusting the headline mechanism.
- How to read our placement: Hollywood Elixir is shown as a publisher benchmark, so the numbered list starts with the highest-scoring non-LPL product.
What stood out across the field
- 01Most senior support starts with visible problems: stiff movement, dull coat, digestion, energy, and comfort. Longevity support goes deeper. It looks at the biological systems that change as dogs age, including cellular energy, NAD+ metabolism, mitochondrial function, oxidative stress, and immune balance. Only a handful of products on this page were built for that deeper layer; we mark them with the Aging Biology Focus badge.
- 02Full dose disclosure was uncommon. Many products listed impressive ingredient groups, but did not show the individual amount of every meaningful active.
- 03Finished-formula clinical evidence was rare. Most products relied on ingredient-level rationale, general wellness positioning, or brand trust rather than a published trial on the exact formula sold.
- 04Senior multivitamins often appear in longevity shopping journeys, but they scored lower on longevity-specific pathway coverage. They are usually built for general senior maintenance, not aging-biology support.
Symbol key How to read the badges and watchouts 9 badges · 3 watchouts
Each ranking row earns badges for what the brand publishes well, and may carry up to three Worth Noting watchouts for limitations buyers should be aware of. The same rules apply to every product on this page — including Hollywood Elixir.
Aging Biology Focus
Most senior dog supplements focus on what owners can already see: stiff movement, dull coat, digestion, comfort, or lower energy. This badge marks products built around the deeper biology of healthy aging — the internal systems that shift as dogs get older.
Every Dose Disclosed
You can see how much of each meaningful active ingredient your dog gets per serving. A long ingredient list means less if the amounts are hidden, blended together, or too small to judge.
Systems Approach
This badge goes to formulas that reach across several aging-related systems instead of leaning on one hero ingredient. For senior dogs, broader support often means thinking about energy, antioxidant defense, immune balance, cognition, and mobility together.
Clean Formula
The active ingredients are only part of the story. This badge marks products with a simpler delivery system and fewer unnecessary extras, especially for owners who care about sugars, artificial sweeteners, heavy chew bases, or vague carriers.
Public Lab Access
The brand makes outside lab results available for shoppers to review. That gives buyers more than a trust-us quality claim — it gives them something concrete to inspect.
Lot-Specific Results
This is stronger than a generic test-results page. It means the brand lets you match your own bottle, bag, or box to test results for that specific production lot.
NASC Quality Seal
The NASC Quality Seal shows the company participates in the National Animal Supplement Council’s quality program. It is not the same as a public lab report, but it is a useful manufacturing and labeling trust signal.
Clinical Evidence Published
Many supplements use ingredients that have been studied somewhere else. This badge is rarer: it means the finished product itself has published clinical evidence, not just borrowed support from ingredient research.
Made In USA
The brand publicly states that manufacturing happens in the United States. This can matter for buyers who care about supply-chain visibility, domestic production standards, and easier accountability.
Worth Noting · three watchouts
Not necessarily dealbreakers — limitations relevant to broad longevity scoring.
Low-Dose Concern
Some active ingredients appear to be present at levels that may be difficult to interpret as meaningful daily support based on public label information.
Dose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
Higher scores reward
Breadth, disclosure, and substantiation.
- Coverage of multiple longevity pathways under one daily formula.
- Per-active milligram amounts disclosed on the public label.
- Named third-party lab, published Certificate of Analysis, lot-level traceability.
- Public substantiation for marketing claims — citations, not adjectives.
Lower scores may mean
Narrower scope, or less of the work published.
- The product targets a single problem rather than longevity-system coverage.
- Actives are listed without per-serving amounts (proprietary blends).
- Testing language is vague — no named lab, no public COA, no lot linkage.
- Claims outrun the public evidence record at time of review.
Publisher Spotlight · Scored, Not Ranked
Scored under the same rubric, held outside the competitive list.
Hollywood Elixir is shown separately because La Petite Labs publishes this report. Under the same rubric, it scores strongly because it combines dose-disclosed NAD+ support, antioxidant defense, mitochondrial cofactors, immune modulation, and lot-level quality verification in one daily formula.
Room for improvement / roadmap
- Publish finished-formula evidence on Hollywood Elixir itself, not only ingredient-level rationale.
- Continue making lot-level testing and quality documentation easier to connect to each delivered box.
- Add more public species-specific safety and palatability data for long-term daily use.
93.2/100
Publisher benchmark · excluded from ranking
No products match
Try a brand name, manufacturer, or partial term — or .
1Rank83.2/100Strong1RankTVSoft ChewThorneVet Longevity Complex
ThorneVet · Soft Chew
Longevity FormulaSoft Chew83.2/100StrongThorneVet Longevity Complex is one of the stronger cat-eligible formulas here because it combines taurine, an NAD+ precursor, and several polyphenols in a soft chew or powder format. Every active dose is shown, including 500 mg taurine and 100 mg nicotinamide riboside hydrogen malate per full serving. The catch: the dosing is built around a 25 lb body-weight unit, so most cat owners would need to give a fraction of a serving rather than a simple whole chew or scoop.
Best forOwners who want a veterinary-channel longevity formula with clear active doses and are comfortable measuring a fractional serving for a cat.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWhat's in it
- Taurine, nicotinamide riboside, quercetin, curcumin, green tea, resveratrol, and astaxanthin with per-serving amounts disclosed.
- A formula aimed at several healthy-aging areas, including cellular energy, antioxidant support, and inflammatory balance.
- NASC Quality Seal and USA manufacturing through a veterinary supplement channel.
What's not in it
- A simple cat-specific serving size for the average adult cat.
- A public lot-specific COA or batch lookup tool.
- A published clinical trial on the finished formula in cats.
Label snapshotAll seven actives disclosed at per-serving mg with branded phytosome grades namedTaurine, Nicotinamide Riboside Hydrogen Malate, Quercetin Phytosome, Curcumin Phytosome, Green Tea Phytosome, Trans-Resveratrol, Astaxanthin?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsEvery meaningful active ingredient is disclosed at a per-serving milligram amount on the public PDP, with no proprietary blend masking.None on actives. Branded phytosome / extract trade names (CurcuVET®, GreenSelect®, Veri-Te®, AstaReal®) clarify rather than obscure dose by identifying the specific raw-material grade.Taurine 500mg · Nicotinamide Riboside Hydrogen Malate 100mg · Quercetin Phytosome 75mg · Curcumin Phytosome (CurcuVET®) 50mg · Green Tea Phytosome (GreenSelect®) 50mg · Trans-Resveratrol (Veri-Te®) 40mg · Astaxanthin (AstaReal®) 3mgThe stack maps cleanly to at least five longevity-relevant pathways: (1) NAD+ / sirtuin support via nicotinamide riboside; (2) oxidative-stress / antioxidant capacity via astaxanthin and the polyphenol bench (quercetin, curcumin, green tea, resveratrol); (3) mitochondrial / cellular energy support via NR-driven NAD+ availability and astaxanthin; (4) inflammatory balance via…Cognitive / neuroprotective pathway is supported only indirectly through the antioxidant and NAD+ stack; no dedicated cognitive ingredient (e.g., phosphatidylserine, lion's mane, citicoline) is included.combines a powerhouse of ingredients for beneficially influencing the body's longevity pathways and promoting healthy aging in companion animalsBrand discloses contract manufacturer (Green Mountain Animal, Milton, Vermont), states NASC membership since 2002, claims 'all products carry the NASC Quality Seal,' and references on-site NASC audits every two years plus GMP compliance.No named third-party testing lab, no public per-lot COA, no batch-lookup tool. Adding a public COA program or naming the testing lab would lift toward tier 9-10.As a fully audited member of NASC, Green Mountain Animal's manufacturing processes comply with Good Manufacturing Practice (GMP) guidelinesVeterinary-channel positioning with explicit weight-based dosing ('one soft chew per 25 pounds of body weight 1-2 times daily'), a published caution panel covering blood thinners, GI sensitivity, stomach ulcers, and pregnancy: 'Do not use with blood thinners. May be a GI irritant. Do not use in animals with stomach ulcers.Cat-specific dosing nuance is not separately published on the chew PDP despite cats being included on the powder PDP — a small species-specific guidance gap.Do not use with blood thinners. May be a GI irritant. Do not use in animals with stomach ulcers. Safe use in pregnant animals has not been established.Architecture is intentional and role-based: a NAD+ precursor (NR-HM) at a meaningful 100 mg per serving, an amino-acid longevity anchor (taurine 500 mg), and a polyphenol bench using branded phytosome forms (CurcuVET®, GreenSelect®, Veri-Te®, AstaReal®) selected for bioavailability rather than commodity equivalents.Public surfaces explain the stack at the ingredient level but do not publish a written 'why these together' architecture rationale connecting each active to a named pathway role.combines Nicotinamide Riboside, Taurine, Quercetin Phytosome, CurcuVET Curcumin Phytosome, Green Tea Phytosome, Resveratrol, and AstaReal Astaxanthin to activate longevity pathwaysClaim register is mostly within structure/function bounds — 'promotes healthy aging,' 'balances inflammatory processes,' 'reduces oxidative stress.' However, the PDP also states the product 'provides key nutritional support for the veterinary cancer patient,' which approaches disease-condition language and is unusual for a retail-channel longevity supplement.The 'veterinary cancer patient' framing sits closer to disease-state language than typical structure/function claims and would be problematic in a DTC-only context, though it is more defensible in a veterinary-practitioner channel.synergistically balance the body's inflammatory processes, while reducing oxidative stress, in addition to providing key nutritional support for the veterinary cancer patientSoft chew inactives are fully enumerated and pet-friendly: arabic gum, vegan bacon flavor, buffered white distilled vinegar, chickpea flour, citric acid, coconut glycerin, coconut oil, guar gum, rosemary extract, sunflower lecithin, sunflower oil, tapioca starch, water. Powder is even cleaner: flaxseed + silicon dioxide only.Sources of the vegan bacon flavor system and the specific binder/humectant rationale are not separately explained; chickpea flour acts as a structural carrier but is not framed as such.Arabic gum, bacon flavor (vegan), buffered white distilled vinegar, chickpea flour, citric acid, coconut glycerin, coconut oil, guar gum, rosemary extract, sunflower lecithin, sunflower oil, tapioca starch, waterTwo delivery formats (soft chew + powder) cover both treat-style and food-mix routines. Dosing is simple: one unit per 25 lbs body weight, 1-2x daily. Subscription is offered at 10% off with monthly / bi-monthly / quarterly cadence. 90-count container = approximately 30-90 days of supply depending on dog weight and 1x vs 2x daily dosing.A larger dog (e.g., 75 lbs) dosed twice daily consumes 6 chews/day, exhausting a 90-count jar in 15 days — meaningful cost-per-month friction not surfaced on the PDP.One soft chew per 25 pounds of body weight 1–2 times dailyLast reviewed: May 20, 2026Sources: Product page · Label panel · Manufacturing page · FAQ page1TVThorneVet Longevity ComplexThorneVet · Soft Chew · Core Longevity FormulaThorneVet Longevity Complex is one of the stronger cat-eligible formulas here because it combines taurine, an NAD+ precursor, and several polyphenols in a soft chew or powder fo...Aging Biology FocusSystems ApproachNASC Quality Seal83.2/100Strong
2Rank78.5/100Solid With Gaps2RankNVSoft ChewNaturVet Advanced 5-in-1 Senior Soft Chews
Garmon Corp (a Swedencare company) · Soft Chew
Senior WellnessSoft Chew78.5/100Solid With GapsNaturVet Advanced 5-in-1 Senior is a simple senior chew built around five named actives: turkey tail, milk thistle, ginkgo, CoQ10, and lutein. It is easy to understand, easy to give, and unusually clear about its active doses for a mainstream senior product. The catch: it is more of a focused senior-support chew than a full longevity supplement, and we did not find public batch lab results.
Best forOwners who want a straightforward senior chew from an established brand, with every active dose shown on the label.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingNarrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- Five senior-support actives with clear per-chew amounts.
- NASC Quality Seal, Made in USA positioning, and clear safety cautions.
- A soft-chew format with weight-based daily serving guidance.
What's not in it
- A public COA or batch-result lookup.
- A named independent testing lab on the product page.
- A broad healthy-aging blend with NAD+ support or higher-dose mitochondrial ingredients.
Label snapshot5 actives · soft chewTurkey Tail Mushroom107 mgMilk Thistle75 mgGinkgo biloba60 mgCoenzyme Q106 mgLutein2.5 mgWhy this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsNaturVet does a good job showing exact amounts. All five named actives are listed with per-chew milligram doses, and there is no proprietary blend hiding the numbers.A broader set of aging-focused actives at meaningful doses would push this closer to a perfect transparency score.Turkey Tail Mushroom: 107 mg · Milk Thistle: 75 mg · Ginkgo biloba: 60 mg · Coenzyme Q10: 6 mg · Lutein: 2.5 mgThis chew covers a few useful senior-health areas, especially mitochondrial support through CoQ10 and immune support through turkey tail mushroom. The other ingredients lean more toward organ-specific support for brain, liver, and eyes.It would need NAD+ support, stronger antioxidant coverage, or another core aging mechanism to read as a true multi-pathway longevity formula.Help maintain cognitive function, liver health, heart health, eye healthNaturVet has credible brand-level quality signals, including NASC preferred supplier status, an FDA-registered facility, cGMP language, and a UL audit reference. The product page does not show a public batch COA or a detailed test panel.A named finished-product testing lab, public lot-linked COAs, and a clear panel for heavy metals, microbes, and potency would raise the score.NaturVet is a founding preferred supplier of the NASC – We provide the highest quality products that adhere to cGMP standards.The safety language is stronger than average. The brand gives an age guideline, warns about pregnancy and breeding use, and flags blood thinner or anticoagulant interactions in plain language.A clearer puppy exclusion and species-specific validation would make the safety case tighter.Safe use in pregnant animals or animals intended for breeding has not been proven. Not to be used with blood thinners or anticoagulants.The formula has a clear senior multi-organ logic: immunity, cognition, liver, heart, and eyes. Each of the five actives has an obvious job, and the doses are disclosed.A dedicated formula rationale outside the marketing copy, with aging-mechanism mapping, would make the case stronger.Maintain energy, mobility, immune health, and overall wellbeingThe brand stays mostly in safe support language: help support, maintain, and overall wellbeing. It does not make lifespan, cure, or disease-treatment claims, and it includes a drug-interaction warning.A published study on this finished NaturVet formula would strengthen the evidence behind the claims.Help support your senior dog's health, vitality, and comfort with one convenient daily supplement.The chew base uses conventional soft-chew ingredients like glycerin, lecithin, tapioca starch, and rosemary extract. No xylitol, propylene glycol, or artificial sweetener was disclosed.A named protein flavor and a published carrier-safety rationale would make this cleaner and more transparent.Brewers Dried Yeast, Fish Oil, Flaxseed, Glycerin, Natural Flavoring, Potato, Rosemary Extract, Sorbic Acid, Sunflower Lecithin, Sunflower Oil, Tapioca Starch, Water.The soft-chew format is easy for many owners, and the dosing chart is clear across three weight bands. The AM/PM split guidance also helps owners handle larger daily amounts.Large dogs need six chews daily, and the product page did not clearly confirm a subscription cadence when reviewed.Up to 20 lbs: 2 chews · 21–50 lbs: 4 chews · 51+ lbs: 6 chews · Amount divisible between AM/PMLast reviewed: May 19, 2026Sources: Product page · Manufacturing page2NVNaturVet Advanced 5-in-1 Senior Soft ChewsGarmon Corp (a Swedencare company) · Soft ChewNaturVet Advanced 5-in-1 Senior is a simple senior chew built around five named actives: turkey tail, milk thistle, ginkgo, CoQ10, and lutein. It is easy to understand, easy to ...NASC Quality SealEvery Dose DisclosedMade In USANarrower Support Scope78.5/100Solid With Gaps
3Rank77.7/100Solid With Gaps3RankVS-CSoft ChewVetriScience Veterinary Strength Healthy Cognition for Dogs (Canine Senior Vitality Pro)
VetriScience Laboratories (FoodScience Corporation) · Soft Chew
Brain Aging SupportSoft Chew77.7/100Solid With GapsVetriScience Healthy Cognition is a senior dog chew focused mainly on brain support. The main ingredient is Magtein® magnesium L-threonate, with DMG, MCTs, omega-3s, resveratrol, and choline alongside it. The catch: the strongest clinical story belongs to the Magtein ingredient, not to a published trial on this exact chew.
Best forOwners who are mainly looking for brain-aging support and want a chew with clearly listed active amounts.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingNarrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- A cognition-focused blend with Magtein®, DMG, MCTs, omega-3s, resveratrol, and choline.
- All six active amounts are disclosed on a brand-hosted sell sheet.
- NASC Quality Seal, Made in USA manufacturing, and a soft-chew format.
What's not in it
- A published clinical trial on the finished chew.
- A public COA lookup or named independent testing lab.
- Broad senior support for joints, NAD+, or immune health.
Label snapshot6 actives per 2 chews · cognitive chewMagtein (Magnesium L-Threonate)450 mgDMG250 mgMCTs (Coconut Oil)240 mgOmega-3 Fatty Acids190 mgMicroActive Resveratrol75 mgtrans-Resveratrol yield22.5 mgCholine40 mgWhy this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsThe actives are well disclosed, with six ingredients listed at per-2-chew amounts. The numbers are strong, but the full facts panel sits on a brand sell sheet rather than directly on the product page.Putting the supplement facts panel directly on the product page would move this to a perfect score.Magtein® (Magnesium L-Threonate) 450 mg · N,N-Dimethylglycine HCl (DMG) 250 mg · Medium Chain Triglycerides (Coconut Oil) 240 mg · Omega 3 Fatty Acids (Fish Oil, Flaxseed Meal) 190 mg · MicroActive® Resveratrol 75 mg · Yielding trans-Resveratrol 22.5 mg · Choline (Choline Chloride) 40 mgThis is a strong cognitive-aging chew with meaningful support for brain health, energy metabolism, and antioxidant resilience. Magtein, choline, omega-3s, MCTs, DMG, and resveratrol give it more depth than a basic senior multivitamin.An immune-class active such as beta glucan, mushroom, or colostrum would better support the immune-function claim.Designed to address common health concerns in senior dogs: cognition, immune function, inflammatory response and overall healthy aging.VetriScience shows NASC Quality Certified status and says the product is made in an SQF-certified, FDA-registered facility. What is missing is a named lab, public COA lookup, or visible per-lot test results.A named third-party lab and lot-linked public COAs would raise this above the current level.Made in a safe quality food (SQF) certified & FDA Registered facility. NASC Quality Certified.The brand gives weight-banded dosing and recommends the product for dogs 7 years and older. It also uses veterinarian-formulated language, which helps the safety posture.Clear pregnancy, lactation, and puppy warnings would make the safety language more complete.Recommended for dogs 7 years and older but suitable for all ages. 0-30 lbs: 1/2 chew daily; 31-60 lbs: 1 chew daily; 61+ lbs: 2 chews daily.The formula makes sense for cognitive aging: Magtein, choline, and MCTs support brain function, while DMG and resveratrol support broader aging and vitality. The roles are explained, but mostly within the product page and sell sheet.A dedicated formula rationale and a better match between the immune claim and an immune-class active would improve this score.Canine Senior Vitality Pro contains Magtein®, Choline and MCTs designed to support healthy brain function. DMG and MicroActive® Resveratrol support a strong immune system, vitality and overall healthy aging.The brand ties its strongest clinical wording to Magtein rather than pretending the whole chew has been clinically proven. It avoids lifespan, cure, and disease language.A published study on Canine Senior Vitality Pro itself would raise the evidence score.Groundbreaking canine supplement formulated with Magtein®, which is clinically shown to support cognition and brain health in senior dogsThe inactive panel is fully disclosed and uses a standard soft-chew base with duck flavor. The brand also states that it avoids artificial flavors, synthetic colors, and synthetic preservatives.Maltodextrin, glycerin, soy lecithin, and propionic acid are common chew ingredients, but not ideal for every dog.Inactive Ingredients: arabic gum, calcium sulfate, cellulose, citric acid, citrus pectin, glycerin, hydrolyzed duck flavor, maltodextrin, mixed tocopherols, oat flour, propionic acid, rosemary extract, silicon dioxide, sodium alginate, sorbic acid, soy lecithin, sweet potato, vegetable oil, water.The duck-flavored chew is practical, and the weight-banded dosing is easy to follow. A 60-chew bag is positioned as a 30-day supply through the vet channel.A visible direct-to-consumer subscription and a lower monthly price would make daily use easier for more owners.30 day supply to encourage repeat purchases at vet clinicsLast reviewed: May 19, 2026Sources: Product page · Label panel3VS-CVetriScience Veterinary Strength Healthy Cognition for Dogs (Canine Senior Vitality Pro)VetriScience Laboratories (FoodScience Corporation) · Soft ChewVetriScience Healthy Cognition is a senior dog chew focused mainly on brain support. The main ingredient is Magtein® magnesium L-threonate, with DMG, MCTs, omega-3s, resveratrol...NASC Quality SealEvery Dose DisclosedMade In USANarrower Support Scope77.7/100Solid With Gaps
4Rank76.5/100Solid With Gaps4RankNXSoft ChewDasuquin Soft Chews for Senior Dogs
Nutramax Laboratories Veterinary Sciences, Inc. · Soft Chew
Senior WellnessSoft ChewProprietary Blend76.5/100Solid With GapsDasuquin Senior is first and foremost a joint-support chew for older dogs. It brings the familiar Dasuquin joint ingredients together with omega-3s, beta-glucans, and added antioxidant support for a senior-focused version of the formula. The catch: this is still mainly a mobility product, and one antioxidant blend is listed without individual amounts.
Best forOwners whose main concern is senior mobility and who want a well-known joint supplement with some added senior support.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingDose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- A joint-focused blend with glucosamine, chondroitin, MSM, ASU, omega-3s, and beta-glucans.
- Separate serving guidance for small, medium, and large dogs.
- A brand with strong veterinary-channel recognition in joint health.
What's not in it
- Full individual amounts for every ingredient in the antioxidant blend.
- A public COA or batch-result lookup.
- A true broad-spectrum longevity supplement.
Label snapshot · proprietary7 disclosed actives + 1 proprietary blend · soft chew (Small/Medium doses shown)Glucosamine HCl600 mgMSM400 mgChondroitin Sulfate250 mgASU45 mgTotal Omega-380 mgEPA+DHA65 mgBeta-Glucans100 mgWhy this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsDasuquin discloses most of the active doses clearly across its small/medium and large dog formulas. The only major miss is one proprietary blend that gives a total amount but not per-ingredient amounts.Breaking out alpha lipoic acid, Boswellia, and green tea into individual amounts would raise the score.Glucosamine Hydrochloride 99%: 600 mg · Methylsulfonylmethane (MSM): 400 mg · Sodium Chondroitin Sulfate: 250 mg · Proprietary Blend: 106 mg · Total Omega-3: 80 mg · EPA + DHA: 65 mg · Avocado/Soybean Unsaponifiables (ASU): 45 mgThis is first and foremost a senior joint supplement. It adds beta-glucans, omega-3s, and antioxidant ingredients, but the strongest support remains joint-led rather than broad longevity coverage.NAD+ support, mitochondrial support, or clearer cellular-aging ingredients would be needed for stronger longevity coverage.Joint Health Support for Senior Dogs · Omega-3 Fatty Acids and Beta-Glucans · Brain HealthNutramax publishes a strong internal quality story, including more than 80 checks per batch. The public page does not name a third-party lab or link a public COA lookup.A named outside lab or public COA tool would move this above the current score.Over eighty quality checks conducted per batch of Dasuquin® product.The product is clearly dog-only and says not to feed it to cats. It also gives weight-banded dosing for both loading and maintenance phases.An age floor, puppy warning, pregnancy/lactation warning, and visible vet-consult language would make the safety guidance more complete.DO NOT FEED TO CATS.The formula has a clear joint-support core built around glucosamine, chondroitin, and ASU, with senior add-ons for immune and antioxidant support. The main weakness is the proprietary blend inside the formula.Individual doses for the proprietary blend and a standalone formula rationale would make the formula easier to judge.Contains glucosamine, chondroitin, and ASU that work better together to support joint health in dogs.The claims stay mostly in responsible support language around joints, mobility, brain health, and immune health. The veterinarian-recommended claim is tied to survey language rather than left unsupported.A published clinical trial on the finished Senior soft-chew formula would strengthen the evidence case.The #1 joint health supplement brand recommended by veterinarians · Survey conducted among small animal veterinarians who recommended animal supplements.The inactive ingredients are disclosed and look like a standard soft-chew system. There are no added sugars, xylitol, or propylene glycol disclosed.Soy protein isolate may be a sensitivity issue for some dogs, and the flavor is listed only as natural flavor without a specific source.Glycerin, lecithin, mixed tocopherols, natural flavor, rosemary extract, silicon dioxide, soy protein isolate, starch, yeast extract, and vegetable oil.The soft-chew format and weight-banded dosing are well explained. The loading phase and maintenance phase are also clearly separated, which helps owners follow the plan.A single daily cadence and visible subscription option would make the routine simpler.Initial 4-6 weeks (soft chews per day): 10-29 lbs (Small/Medium): 1 chew · 30-59 lbs (Small/Medium): 2 chews · 60-120 lbs (Large): 2 chews. Suggested maintenance level: 10-29 lbs: 1 EOD · 30-59 lbs: 1 chew · 60-120 lbs: 1 chewLast reviewed: May 19, 2026Sources: Product page · Manufacturing page4NXDasuquin Soft Chews for Senior DogsNutramax Laboratories Veterinary Sciences, Inc. · Soft ChewDasuquin Senior is first and foremost a joint-support chew for older dogs. It brings the familiar Dasuquin joint ingredients together with omega-3s, beta-glucans, and added anti...Dose Disclosure LimitedNarrower Support Scope76.5/100Solid With Gaps
5Rank71/100Solid With Gaps5RankZPPowderZesty Paws Healthy Aging NAD+ Precursor Powder for Dogs
Zesty Paws (H&H Group) · Powder
Longevity FormulaPowder71/100Solid With GapsZesty Paws Healthy Aging NAD+ Precursor is a very simple powder built around one clear idea: 60 mg of Niagen® per sachet. That makes it easy to understand and easy to compare if your main goal is NAD+ support. The catch: it does not include much beyond that one healthy-aging ingredient.
Best forOwners who specifically want a Niagen® NAD+ powder from a mainstream pet supplement brand.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaPublic Lab AccessLot-Specific ResultsNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingNarrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- Niagen® nicotinamide riboside at 60 mg per sachet.
- A short ingredient list with chicory root fiber as the main supporting ingredient.
- A powder format designed to mix into food once daily.
What's not in it
- A broader formula with CoQ10, antioxidants, immune ingredients, or cognitive support.
- Full public detail on testing scope or the outside lab used.
- Clear age, pregnancy, or weight-band guidance on the product page.
Label snapshot1 active · powder sachetNiagen Nicotinamide Riboside Chloride60 mgWhy this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsThis product is very transparent because it is simple. It discloses one active, 60 mg of Niagen nicotinamide riboside per sachet, with chicory root fiber as the carrier.60 mg of Niagen per sachetThis is a clean NAD+ precursor product, but it is not a broad longevity formula. It supports one aging-related area: NAD+ metabolism.Adding another meaningful aging-support active such as CoQ10, quercetin, or resveratrol would broaden the coverage.Nicotinamide riboside chloride (Niagen®): 60 mg per sachetThe lot-number lookup is a real buyer-facing trust signal. The NASC-Certified badge helps too, but the public testing page does not name the lab or spell out what is tested.A named lab and clear testing scope for heavy metals, microbes, potency, and label accuracy would raise the score.enter the lot number from the back of the package below to view test results for your productThe product page does not show enough safety guidance. It gives a flat one-sachet routine, but no clear age floor, weight-based dosing, pregnancy/lactation warning, or vet-consult language was visible.Basic age guidance, weight bands, and a veterinarian-consult warning would move this much higher.The formula is coherent because it does one thing: deliver a branded NAD+ precursor at a disclosed dose. It avoids the kitchen-sink problem and does not use a proprietary blend.A published formula rationale explaining the ingredient choice would strengthen the score.Niagen® (Nicotinamide Riboside Chloride)The claims are moderate and mostly stay around supporting dogs as they age. The language gets more playful with “feeling Zesty,” but it does not claim to cure disease or extend lifespan.A finished-formula trial or peer-reviewed citations on the product page would improve the evidence support.support your dog as they ageThe supporting ingredient list is minimal: chicory root fiber is the only other ingredient shown. The sachet format avoids the fillers, sweeteners, and binders common in chews.A documented flavor system and clearer carrier-safety language would make it stronger.Other Ingredients: Chicory Root FiberA single daily sachet is easy to understand, and the brand offers multiple subscription cadences. “Just pour, mix, serve” is a simple daily instruction.Powder still has to be mixed into food, and no public weight-banded guidance was shown.Just pour, mix, serveLast reviewed: May 19, 2026Sources: Product page · Testing page5ZPZesty Paws Healthy Aging NAD+ Precursor Powder for DogsZesty Paws (H&H Group) · Powder · Core Longevity FormulaZesty Paws Healthy Aging NAD+ Precursor is a very simple powder built around one clear idea: 60 mg of Niagen® per sachet. That makes it easy to understand and easy to compare if...Aging Biology FocusLot-Specific ResultsNASC Quality SealNarrower Support Scope71/100Solid With Gaps
6Rank70.5/100Solid With Gaps6RankPNCTabletPetNC Natural Care Senior Multi Daily Formula
21st Century Animal HealthCare (Tempe, AZ) · Tablet
Senior WellnessTablet70.5/100Solid With GapsPetNC Senior Multi Daily Formula is a classic senior multivitamin chewable with a clear vitamin-and-mineral panel. It gives buyers more dose detail than many budget senior products, including taurine, vitamin C, B vitamins, iron, zinc, and fat-soluble vitamins. The catch: it is a senior multivitamin, not a dedicated longevity formula.
Best forOwners who want an affordable senior vitamin with clear label amounts and basic daily nutrition support.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingNarrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- A detailed vitamin-and-mineral panel with many amounts shown per chewable.
- Taurine, vitamin C, choline, inositol, B vitamins, iron, zinc, and vitamins A, D, and E.
- NASC and cGMP manufacturing signals connected to the parent company.
What's not in it
- NAD+, CoQ10, senolytic-style ingredients, or a broader healthy-aging blend.
- A public lot-specific COA lookup.
- Strong sensitive-population guidance on puppies, pregnancy, or lactation.
Label snapshot17 micronutrient actives · chewable tabletVitamin C50 mgTaurine50 mgNiacin11 mgCholine8 mgInositol8 mgThiamine8 mgPantothenic Acid7 mgIron4 mgRiboflavin4 mgPyridoxine4 mgZinc2 mgManganese1 mgVitamin A1500 IUVitamin D375 IUVitamin E25 IUFolic Acid0.02 mgBiotin0.003 mgWhy this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsPetNC gives shoppers a full supplement facts panel with amounts for vitamins, minerals, taurine, choline, and inositol. There are no proprietary blends hiding the numbers.The disclosure is clear for a multivitamin, but it does not include modern longevity actives such as NAD+ precursors, mitochondrial cofactors, or senolytic ingredients.Iron 4 mg, Manganese 1 mg, Zinc 2 mg, Vitamin A 1500 IU, Vitamin D 375 IU, Vitamin E 25 IU, Thiamine 8 mg, Riboflavin 4 mg, Panthothenic Acid 7 mg, Niacin 11 mg, Pyridoxine 4 mg, Folic Acid 0.02 mg, Choline 8 mg, Ascorbic Acid (Vitamin C) 50 mg, Taurine 50 mg, Inositol 8 mg, and Biotin 0.003 mg.This is a conventional senior multivitamin. It offers general antioxidant support through vitamin C and vitamin E, but it does not address NAD+, mitochondria, immune aging, or cellular resilience in a targeted way.It would need meaningful NAD+, mitochondrial, immune, or cellular-aging ingredients to score higher.Ascorbic Acid (Vitamin C) 50 mg, Taurine 50 mgThe parent company references NASC, NSF, cGMP manufacturing, and a Tempe facility. The product page itself does not show a named analytical lab, test panel, or lot-linked COA lookup.Public lot-linked COAs and a clear heavy metal, microbial, potency, and label-accuracy panel would improve the score.all 21st Century Animal HealthCare nutritional products are manufactured and packaged under strict laboratory procedures and current Good Manufacturing Practices (cGMPs)The product gives a clear four-tier dosing chart by weight and is positioned for senior dogs. The captured panel did not show puppy, pregnancy, or lactation warnings.Clear sensitive-population warnings and drug-interaction cautions would make the safety guidance stronger.For dogs up to 20 lbs - 1 chewable daily, 21-40 lbs - 2 chewables daily, 41-60 lbs - 3 chewables daily, and over 60 lbs - 4 chewables daily.The formula is straightforward: senior multivitamin, minerals, taurine, choline, and inositol. The ingredients are individually disclosed, but the product does not explain the biological role of each ingredient in a deeper way.A published formula rationale and stronger aging-mechanism mapping would raise the score.Senior Multi Daily Multivitamins for DogsThe brand keeps the language conservative and focused on senior multivitamin support. It does not lean on lifespan, anti-aging, cure, or disease-treatment claims.A finished-formula study or stronger evidence references would improve the evidence case.Senior Multi Daily Multivitamins for DogsThe chewable tablet base is conventional, with ingredients like dextrose, cellulose, stearic acid, silicon dioxide, and magnesium stearate. Liver meal and natural flavor help palatability, and no xylitol or propylene glycol was found.Dextrose is a sugar carrier, which may matter to owners looking for a sugar-free daily supplement.Dextrose, Microcrystalline Cellulose, Liver Meal, Stearic Acid, Ascorbic Acid, dl-Alpha Tocopheryl Acetate (source of Vitamin E), L-Taurine, Natural Flavor, Silicon Dioxide, Magnesium Oxide, Choline Bitartrate, Magnesium Stearate, Ferrous Fumarate, Thiamine MononitrateThe product is cheap, widely distributed, liver-flavored, and clearly dosed across four weight bands. That makes it easy for many owners to use daily.A 60-count bottle lasts only 15 days for dogs over 60 lb, so large-dog owners face a faster refill cycle.For dogs up to 20 lbs - 1 chewable daily, 21-40 lbs - 2 chewables daily, 41-60 lbs - 3 chewables daily, and over 60 lbs - 4 chewables daily.Last reviewed: May 19, 2026Sources: Retailer listing · Manufacturing page6PNCPetNC Natural Care Senior Multi Daily Formula21st Century Animal HealthCare (Tempe, AZ) · TabletPetNC Senior Multi Daily Formula is a classic senior multivitamin chewable with a clear vitamin-and-mineral panel. It gives buyers more dose detail than many budget senior produ...NASC Quality SealEvery Dose DisclosedMade In USANarrower Support Scope70.5/100Solid With Gaps
7Rank69.3/100Disclosure Gaps7RankCHSoft ChewChew + Heal Senior 12-in-1 Advanced Multivitamin
Chew + Heal · Soft Chew
Senior WellnessSoft Chew69.3/100Disclosure GapsChew + Heal Senior 12-in-1 is a soft chew for older dogs that combines joint ingredients, omegas, vitamins, choline, biotin, and probiotics. Its strongest point is that the product page shows clear amounts for the main actives, which is not always true in this category. The catch: testing details are thin, and this still reads more like a senior multivitamin than a true longevity supplement.
Best forOwners who want a senior chew with joint, vitamin, omega, and probiotic support in one product.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingNarrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- Glucosamine, chondroitin, omega fatty acids, vitamins, choline, biotin, and probiotics.
- Per-serving amounts shown for the main active ingredients.
- A soft-chew format with a stated 12-month age floor.
What's not in it
- A named independent testing lab or public COA lookup.
- Clear weight-based dosing on the brand product page.
- A dedicated NAD+, mitochondrial, or cellular-aging formula.
Label snapshot24 disclosed actives · soft chewGlucosamine HCl500 mgOmega-3350 mgChondroitin Sulfate90 mgOmega-653.5 mgVitamin C50 mgOmega-942 mgCholine25 mgVitamin E25 IUVitamin A500 IUVitamin D350 IUBiotin1 mgNiacin1.7 mgZinc0.75 mgIron0.5 mgPantothenic Acid0.34 mgRiboflavin0.33 mgPyridoxine0.13 mgThiamine0.12 mgFolic Acid0.03 mgManganese0.03 mgIodine0.03 mgCopper0.025 mgVitamin B120.004 mgProbiotic500M CFUWhy this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsChew + Heal discloses the active amounts for glucosamine, chondroitin, vitamin C, probiotics, omegas, vitamins, and minerals. It does not hide the formula behind proprietary blends.A clearer per-chew, weight-banded dose chart would make intake easier for owners to calculate.Glucosamine HCl: 500 mg · Chondroitin Sulfate: 90 mg · Vitamin C (Ascorbic Acid): 50 mg · Probiotics (Bacillus Coagulans, Bacillus Subtilis): 500 Million CFU · Alpha-Linolenic Acid (Omega-3): 350 mg · Linoleic Acid (Omega-6): 53.5 mg · Oleic Acid (Omega-9): 42 mg · Vitamin A: 500 IU · Vitamin D3: 50 IU · Vitamin E: 25 IU · Choline: 25 mg · Biotin: 1 mgThis product covers immune and digestive support through probiotics and antioxidant vitamins, plus omega-3 support. Much of the formula is still a broad senior multi for joints, skin, coat, and general wellness rather than a targeted longevity system.NAD+ support, mitochondrial ingredients, or stronger antioxidant actives such as glutathione or astaxanthin would raise the longevity score.promote skin and coat health, boost the immune system, aid digestion, support cognitive function, and maintain healthy liver, kidney, heart, cartilage, and joint healthThe brand says the product is made in an FDA-audited and third-party-audited facility. It does not name the auditor, the lab, the test panel, or provide a public COA.A named auditor or lab plus batch-level test results would make the testing proof much stronger.Made in the USA in an FDA-audited and 3rd-party audited facility.The product has a clear 12-month age floor and warns that use in pregnant or breeding animals has not been proven. That is useful basic safety language for a senior supplement.A public weight-banded dosing chart and condition-specific cautions would improve this score.Age Requirement: 12 Months+. Safe use in pregnant animals or animals intended for breeding has not been proven.The formula lists 12 actives and groups them around common senior concerns like joints, digestion, immune support, skin and coat, cognition, and organs. It is broad and practical, but the reasoning stays at the benefit-list level.A standalone formula rationale explaining the aging role of each ingredient would strengthen the score.Help your senior dog thrive with Chew + Heal Senior 12-In-1 Advanced Multivitamin Soft Chews Supplement. Designed specifically for aging pups, this daily supplement provides a targeted blend of essential vitamins, minerals, and advanced nutraceuticals to support their overall health.Most claims stay in support language, such as supporting cognition or maintaining organ and joint health. The weak point is the “Joint Pain/Arthritis” tag, which leans closer to treatment language.A finished-formula clinical study and cleaner avoidance of condition tags would improve the score.Driven by purity and quality, our supplements are crafted with care in FDA-audited facilities, ensuring the best for both your dogs and ours.The chew uses a conventional base with flaxseed, glycerin, brewers yeast, potato, lecithin, fish oil, pumpkin, and natural flavoring. No xylitol, propylene glycol, or artificial sweetener was disclosed.Maltodextrin, unnamed natural flavoring, and shellfish digest without a clear allergen flag keep this below the top level.Flaxseed, Glycerin, Brewers Dried Yeast, Potato, Lecithin, Dried Shellfish Digest, Fish Oil, Pumpkin Powder, Water, Dicalcium Phosphate, Chondroitin Sulfate, Biotin, Natural Flavoring, Calcium Ascorbate (Source of Vitamin C), Maltodextrin, Tapioca Starch, Choline Bitartrate, Vitamin E SupplementThe soft-chew format is easy for many senior dogs. The problem is that the product page did not show a clear weight-banded dosing chart, and the item was sold out when reviewed.Visible weight-based dosing, confirmed subscription options, and steady availability would improve the score.Senior 12-In-1 Advanced Multivitamin Soft Chews Supplement for Senior DogsLast reviewed: May 19, 2026Sources: Retailer listing · Product page7CHChew + Heal Senior 12-in-1 Advanced MultivitaminChew + Heal · Soft ChewChew + Heal Senior 12-in-1 is a soft chew for older dogs that combines joint ingredients, omegas, vitamins, choline, biotin, and probiotics. Its strongest point is that the prod...Every Dose DisclosedMade In USANarrower Support Scope69.3/100Disclosure Gaps
8Rank69.3/100Disclosure Gaps8RankMLPowderThe Missing Link Ultimate Canine Senior Health Formula
W.F. Young, Inc. (Absorbine) · Powder
Senior WellnessPowder69.3/100Disclosure GapsThe Missing Link Senior is a whole-food powder for older dogs, with omega fatty acids, glucosamine, green-lipped mussel, ginkgo, taurine, zinc, and probiotics. It has a surprisingly detailed serving panel for a food-style supplement. The catch: it has to be mixed into food, and we did not find public testing or batch-result information.
Best forOwners who like whole-food powders and want senior support that goes beyond a basic vitamin chew.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingNarrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- Omega-3s, glucosamine, green-lipped mussel, ginkgo, taurine, zinc, and probiotics.
- A detailed label with many per-serving amounts shown.
- Weight-based scoop guidance, with a gradual introduction period for the powder.
What's not in it
- A public COA lookup or named independent testing lab.
- A dedicated NAD+ or mitochondrial support ingredient.
- A chew format for dogs who refuse powders.
Label snapshot17 actives · powderOmega-3 (Flaxseed)675 mgGlucosamine HCl360 mgOmega-9301 mgRice Bran275 mgGreen Lipped Mussel254 mgOmega-6253 mgNutritional Yeast206 mgGinkgo Biloba144 mgFructooligosaccharide72 mgMCH Calcium48 mgYucca Schidigera45 mgTaurine45 mgKelp7 mgZinc Monomethionine5 mgSelenium Yeast1.3 mgVitamin B60.7 mgProbiotic368M CFUWhy this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsThe Missing Link discloses a large number of active amounts per 3-teaspoon serving, including omegas, glucosamine, green-lipped mussel, ginkgo, prebiotics, minerals, and probiotics. It does not use proprietary blends.The formula is transparent for whole-food ingredients, but it does not include or disclose modern longevity actives like NAD+ precursors or mitochondrial cofactors.Omega 3 Fatty Acids (Flaxseed): 675 mg · Glucosamine HCl (Shellfish): 360 mg · Omega 9 Fatty Acids: 301 mg · Rice Bran: 275 mg · Green Lipped Mussel: 254 mg · Omega 6 Fatty Acids: 253 mg · Nutritional Yeast: 206 mg · Ginkgo Biloba: 144 mg · Fructooligosaccharide: 72 mg · Microcrystalline Hydroxyapatite Calcium: 48 mg · Yucca Schidigera Extract: 45 mg · Taurine: 45 mg · Kelp: 7 mg · Zinc Monomethionine Complex: 5 mg · Selenium Yeast: 1.3 mg · Pyridoxine Hydrochloride (Vitamin B6): 0.7 mg · Total Probiotic Microorganisms: 368,000,000 CFUThe strongest aging-relevant support is immune and digestive support from probiotics, FOS, and green-lipped mussel, plus cognitive support from ginkgo. The rest leans more toward joints, skin, and coat.NAD+ support, mitochondrial support, or strong antioxidant actives such as glutathione or astaxanthin would broaden the longevity case.Senior dogs need a comprehensive supplement that supports flexibility, mobility and digestive & immune systems while providing a healthy skin & coatNo public lab name, test panel, or lot-linked COA was found on the reviewed product surfaces. The parent company has NASC-related credibility, but that was not clearly shown on the senior product page itself.A public testing statement, named lab, test panel, and COA lookup would raise this score.The product gives a five-tier weight-based dosing chart and tells owners to introduce it gradually because of the fiber content. That is useful practical safety guidance for a powder.Puppy, pregnancy, lactation, and condition-specific warnings would make the safety guidance more complete.12 lbs — 1/2 tsp · 25 lbs — 1 tsp · 50 lbs — 2 tsp · 75 lbs — 3 tsp · 100 lbs — 4 tsp. Due to the high fiber content, start with small amounts and gradually increase to the recommended level over the course of a week or two.The formula is a whole-food powder with 17 disclosed actives and no hidden blend. It is organized around broad benefits such as joints, digestion, immune support, skin and coat, and cognition.A dedicated formula rationale connecting each ingredient to aging-related roles would make the formula easier to evaluate.Glucosamine and New Zealand green lipped mussels help maintain flexibility and support healthy joints, omega-3 and 6 fatty acids promote cell health and maintain healthy energy levels, and probiotics and dietary fiber promote good digestive health.Most claims stay in normal support language for flexibility, mobility, digestion, and immunity. The phrase about making older dogs “lively all the time” is more marketing-heavy than evidence-heavy.A finished-formula study and more restrained aging language would improve the score.Enhancing the general healthiness of senior dogs thus making them lively all the time even if they are growing olderThe powder avoids the usual chew carriers and glycerin system. Flavor comes from food-form ingredients like beef liver, salmon, oyster, alfalfa, and barley grass.Molasses adds a sugar carrier, and common allergens such as soy, oyster, and salmon are not clearly flagged on the product page.Alfalfa, Barley Grass, Beef Liver, Carrot, Lecithin, Molasses, Natural Flavoring, Oyster, Salmon, Soy Lecithin, Sunflower SeedThe five-tier dosing chart is clear, and the bag can be good long-term value. Daily use is less convenient than a chew because it requires mixing and a gradual ramp-up phase.A simpler start protocol and visible subscription option would improve the daily-use experience.Due to the high fiber content, start with small amounts and gradually increase to the recommended level over the course of a week or two.Last reviewed: May 19, 2026Sources: Retailer listing · Manufacturing page8MLThe Missing Link Ultimate Canine Senior Health FormulaW.F. Young, Inc. (Absorbine) · PowderThe Missing Link Senior is a whole-food powder for older dogs, with omega fatty acids, glucosamine, green-lipped mussel, ginkgo, taurine, zinc, and probiotics. It has a surprisi...Every Dose DisclosedMade In USANarrower Support Scope69.3/100Disclosure Gaps
9Rank67.5/100Disclosure Gaps9RankVSSoft ChewVetriScience Senior 27+ Active Health for Dogs
VetriScience Laboratories · Soft Chew
Senior WellnessSoft Chew67.5/100Disclosure GapsVetriScience Senior 27+ is a broad senior chew from a brand many veterinarians and clinics already know. The name suggests a large active set for senior dogs, with support claims around heart, brain, immune health, and overall aging. The catch: the public product page did not show the full ingredient panel with individual amounts.
Best forOwners who already trust VetriScience and want a clinic-familiar senior chew, even without full public dose detail.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingLow-Dose Concern
Some active ingredients appear to be present at levels that may be difficult to interpret as meaningful daily support based on public label information.
Dose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- Senior-dog positioning from a long-established supplement brand.
- NASC Quality Seal and SQF-certified manufacturing claims.
- A soft-chew format with weight-based serving guidance.
What's not in it
- A visible public panel showing all 27+ ingredients and their amounts.
- A public COA lookup or named independent testing lab.
- A published clinical trial on the finished formula.
Label snapshot27+ named actives · 0 doses disclosed · soft chewNOT PUBLICLY DISCLOSED?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsThe product page names useful ingredients, but it does not show a full supplement facts panel with amounts for each active. The “27+” claim is also not itemized on the page.Publishing the full 27+ active list with per-active amounts would raise the score.Arginine, Vitamins A, C & E, B vitamins, fish oil concentrate (EPA and DHA), biotin, and methionineThe named ingredients suggest antioxidant support, cognitive support from DHA, and general cellular-energy support from B vitamins, arginine, and methionine. The issue is that dose strength cannot be checked from the page.Per-active dose disclosure is needed before buyers can judge whether each area is meaningfully supported.complete senior dog multivitamin chew for daily health and wellbeingVetriScience has strong program-level signals: founding NASC membership, routine third-party testing language, and an SQF-certified, FDA-registered facility. The page does not name the lab or provide public COAs.A named third-party lab and lot-linked COA lookup would improve the score.Members must submit to random product testing by an independent lab to ensure ingredients meet label claim.The product gives a size-aware senior age guideline and clear weight-banded dosing. It also tells owners to split dosing between morning and evening when giving more than one chew.Explicit puppy, pregnancy, lactation, and condition-specific warnings would make the safety profile stronger.Generally recommended to start supplementing with a senior multivitamin when dogs turn 7 (medium to large dogs) or 10 (small dogs).The product is positioned as a complete senior multivitamin, but the page does not itemize the 27+ actives or explain their roles. The idea is clear, but the ingredient-level proof is not visible.An itemized active list with grouped roles and a formula rationale would raise the score.Senior 27+ Active Health for DogsThe claims are conservative and supported by NASC participation and veterinarian-formulated language. The brand does not use lifespan or cure claims.A finished-formula trial or peer-reviewed citations on the product page would strengthen the evidence.Veterinarian formulated & recommendedThe veggie flavor positioning is useful for dogs with protein sensitivities or sensitive stomachs. The weakness is that the full inactive ingredient list was not visible on the product page when reviewed.Publishing the complete inactive ingredient list would allow a proper carrier and palatability review.Veggie flavoring is gentle on sensitive stomachs and appropriate for dogs with protein sensitivities.The dosing is clear and weight-banded, with AM/PM guidance for larger dogs. Multiple subscription cadences and a satisfaction guarantee also help daily use.The product page did not disclose the subscription discount percentage.Under 25 lbs: ½ chew daily. 25 - 75 lbs: 1 chew daily. Over 75 lbs: 2 chews daily. If giving more than 1 chew daily, divide between AM and PM.Last reviewed: May 19, 2026Sources: Product page · Manufacturing page · Testing page9VSVetriScience Senior 27+ Active Health for DogsVetriScience Laboratories · Soft ChewVetriScience Senior 27+ is a broad senior chew from a brand many veterinarians and clinics already know. The name suggests a large active set for senior dogs, with support claim...NASC Quality SealMade In USALow-Dose ConcernDose Disclosure LimitedNarrower Support Scope67.5/100Disclosure Gaps
10Rank67/100Disclosure Gaps10RankONPPowderOnly Natural Pet Senior Ultimate Daily Vitamins
Only Natural Pet · Powder
Senior WellnessPowder67/100Disclosure GapsOnly Natural Pet Senior Ultimate Daily Vitamins is a senior powder with a long list of vitamins, minerals, omega-3s, joint ingredients, probiotics, enzymes, and amino acids. Its biggest strength is that the label gives unusually detailed amounts for a senior multivitamin. The catch: it is still a senior daily vitamin, not a purpose-built longevity formula, and we did not find public batch lab results.
Best forOwners who want a detailed senior multivitamin powder with more label clarity than many mainstream options.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingNarrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- A broad senior vitamin-and-mineral blend with added omega-3s, joint ingredients, probiotics, enzymes, and amino acids.
- A detailed per-teaspoon label with many active amounts shown.
- Weight-based powder dosing for dogs of different sizes.
What's not in it
- A public COA or batch-result lookup.
- A named independent testing lab on the product page.
- A dedicated NAD+, mitochondrial, or cellular-aging formula.
Label snapshot~21 disclosed actives · powder · whole-food carrier baseVit A100 IUVit D310 IUVit E5.4 IUThiamine (B1)3.75 mgRiboflavin (B2)2.5 mgNiacin (B3)3.57 mgPyridoxine (B6)2.5 mgPantothenic Acid5.03 mgFolic Acid0.0025 mgVit B120.005 mgCholine37.5 mgOmega-350 mgGlucosamine125 mgChondroitin Sulfate87 mgAscorbic Acid37.5 mgBiotin0.035 mgProbiotic blend (L. acidophilus, S. cerevisiae)3.0 x 10^9 CFUWhy this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsOnly Natural Pet publishes a very detailed guaranteed analysis with per-teaspoon amounts for vitamins, choline, omega-3, glucosamine, chondroitin, vitamin C, biotin, probiotics, enzymes, minerals, and amino acids. There are no proprietary blends hiding the numbers.A named evidence anchor, such as a study or white paper supporting this exact panel, would push it higher.Vitamin A: 100 IU; Vitamin D3: 10 IU; Vitamin E: 5.4 IU; Thiamine (B1): 3.75 mg; Riboflavin (B2): 2.5 mg; Niacin (B3): 3.57 mg; Pyridoxine (B6): 2.5 mg; Pantothenic Acid: 5.03 mg; Folic Acid: 0.0025 mg; Vitamin B12: 0.005 mg; Choline: 37.5 mg; Omega 3 Fatty Acid: 50 mg; Glucosamine: 125 mg; Chondroitin Sulfate: 87 mg; Ascorbic Acid: 37.5 mg; Biotin: 0.035 mg; Probiotics (L. acidophilus, S. cerevisiae): 3.0 x 10^9 CFUThis powder covers several senior-maintenance areas: antioxidant support, cognitive support from omega-3 and choline, and gut/immune support from probiotics and enzymes. It does not cover NAD+ or cellular senescence.NAD+ support, a mitochondrial active, or a named senolytic would strengthen the longevity profile.Holistic vet formulated to support your senior dog's overall health, wellness, vitality, and particular needs.No third-party testing claim, lab name, NASC seal, COA portal, or batch lookup was visible on the product page when reviewed. That leaves buyers with very little public quality proof.Any explicit testing program with a named lab, COA lookup, or test scope would raise this score.The product gives four weight-based dosing ranges and a basic “for animal use only” caution. It does not show a specific senior age floor or clear puppy, pregnancy, or lactation warnings.A 7+ age guideline and explicit sensitive-population warnings would improve the score.Up to 20 lbs. 1 tsp daily; 21 to 50 lbs. 1½ tsp daily; 51 to 100 lbs. 2 tsp daily; over 100 lbs. 2½ tsp dailyThe formula is broad and organized across vitamins, joint actives, antioxidants, omega-3, enzymes, probiotics, minerals, and amino acids. The holistic-vet framing helps, but the page does not name the vet or publish a deeper rationale.A named DVM and published formula rationale would make the formula case stronger.Holistic vet formulated to support your senior dog's overall health, wellness, vitality, and particular needs.The brand stays in general support language around senior health, wellness, and vitality. It does not make lifespan, cure, or disease-treatment claims.A finished-formula study and named vet credentialing on the page would raise the evidence score.Specifically formulated to support senior dogsThe powder format avoids common chew fillers like glycerin, palm oil, and lecithin. The other ingredients list is detailed and based on whole-food and functional inputs, with no xylitol or propylene glycol found.Documented palatability data would make the flavor case stronger.Flaxseed, Alfalfa Meal, New Zealand Green Mussels, Dried Aspergillus oryzae Fermentation Product, Dried Aspergillus niger Fermentation Product, Pineapple Stem Powder, Glucosamine HCl (shellfish), Chondroitin Sulfate (bovine), Choline Bitartrate, L-Lysine Mono Hydrochloride, Natural Turkey Flavor, Anchovy Oil Powder, Calcium Ascorbate, Potassium Citrate, Tricalcium Phosphate, Dried Lactobacillus acidophilus Fermentation Product, Dried Saccharomyces cerevisiae Fermentation Product, Dried Kelp, Yucca (root), Citrus Pulp, DL-Methionine, Calcium Pantothenate, Vitamin E Supplement, L-Threonine, Thiamine Mononitrate, Niacinamide, Riboflavin, Pyridoxine Hydrochloride, Para-Aminobenzoic Acid, Biotin, Silicon Dioxide, Vitamin B12 Supplement, Inositol, Vitamin A Supplement, Vitamin D3 (Cholecalciferol) Supplement, Folic Acid.The four-tier scoop dosing is clear, and subscription savings are available. As a powder, it still has to be mixed into food each day.A chew format would be easier for some owners and picky dogs.Up to 20 lbs. 1 tsp daily; 21 to 50 lbs. 1½ tsp daily; 51 to 100 lbs. 2 tsp daily; over 100 lbs. 2½ tsp dailyLast reviewed: May 19, 2026Sources: Product page10ONPOnly Natural Pet Senior Ultimate Daily VitaminsOnly Natural Pet · PowderOnly Natural Pet Senior Ultimate Daily Vitamins is a senior powder with a long list of vitamins, minerals, omega-3s, joint ingredients, probiotics, enzymes, and amino acids. Its...Every Dose DisclosedMade In USANarrower Support Scope67/100Disclosure Gaps
11Rank65/100Disclosure Gaps11RankZPSoft ChewZesty Paws Senior Advanced 11-in-1 Multivitamin Bites for Senior Dogs
Zesty Paws (H&H Group) · Soft Chew
Senior WellnessSoft Chew65/100Disclosure GapsZesty Paws Senior Advanced 11-in-1 is a mainstream senior chew built for broad daily support: joints, antioxidants, urinary health, skin, coat, and vitamins. It is easy to buy, easy to give, and familiar to many pet owners. The catch: several ingredients are listed without individual amounts, so the label is not as clear as the product name sounds.
Best forOwners who want a popular senior chew that covers many everyday wellness needs in one bite.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaPublic Lab AccessLot-Specific ResultsNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingLow-Dose Concern
Some active ingredients appear to be present at levels that may be difficult to interpret as meaningful daily support based on public label information.
Dose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- A broad senior chew naming glucosamine, chondroitin, turmeric, cranberry, a Bacillus subtilis probiotic, vitamins C and E, B-complex, manganese, biotin, and Ceylon cinnamon.
- Public lot-linked lab-result lookup — pull up the test results for the specific bag you bought.
- NASC seal plus B-Corp certification at brand level.
What's not in it
- Individual per-chew amounts for the named ingredients on the public PDP.
- A named independent testing lab behind the COA library.
- A dedicated longevity formula focused on NAD+, mitochondria, or cellular aging.
Label snapshot11-in-1 framing · 8 complexes rendered · 0 per-chew doses on PDP · soft chewNOT PUBLICLY DISCLOSED?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsThe product page names many actives, but it does not show per-chew amounts for them. That makes it hard for buyers to know how much glucosamine, vitamins, turmeric, probiotics, or other actives their dog is actually getting.A per-chew supplement facts panel with mg, mcg, IU, and CFU amounts would raise this score.Chickpea Flour, Sunflower Lecithin, Pea Flour, Palm Oil, Glucosamine Hydrochloride, Vegetable Glycerin, Pumpkin, Chondroitin Sulfate, Microcrystalline Cellulose, Chicken, Ground Flaxseed, Fish Oil, Natural Chicken Flavor, Turmeric Extract, Natural Flavor, Tapioca Starch, Cranberry Extract, Ascorbic Acid (Vitamin C), Niacin, Mixed Tocopherols, Rosemary Extract, Vitamin E (D-Alpha Tocopherol), Dried Bacillus subtilis Fermentation Product, Thiamine Mononitrate, Pyridoxine Hydrochloride, Riboflavin, Calcium D-Pantothenate, Ceylon Cinnamon, Manganese Proteinate, Folic Acid, Vitamin B12 (Cyanocobalamin), Biotin.The named ingredients suggest antioxidant support through vitamins, turmeric, rosemary, and tocopherols, plus immune/gut support through Bacillus subtilis and cranberry. But without doses, the strength of that support is hard to verify.Published active doses are needed before the coverage can be judged at meaningful levels.Eight complexes that support skin, hip and joint, gut, immune, heart, brain, eye, and urinary health for head to tail functional support.Zesty Paws offers a public lot-number test-results lookup, which is a strong buyer-facing proof point. The NASC-Certified badge and B-Corp status add broader trust signals.Naming the testing lab and listing the exact test scope would move this closer to perfect.In the field below, enter the lot number from the back of the package below to view test results for your product.The product sits inside an NASC-Certified program, but the visible product page did not show enough direct safety guidance. A clear senior age floor, weight-based chew counts, and pregnancy or puppy warnings were not surfaced when reviewed.Explicit age, weight, puppy, pregnancy, and lactation guidance would raise the score.NASC-CertifiedThe product is marketed as 11-in-1, while the page also describes eight support complexes. That gives shoppers a broad benefit story, but it does not clearly connect each active and dose to each benefit.Reconciling the 11-in-1 and eight-complex language with disclosed active doses would improve the score.Senior Advanced 11-in-1 Multivitamin Bites for Senior DogsThe claims stay mostly in safe support language such as head-to-tail functional support. NASC participation also helps keep the language more responsible.A finished-formula trial or peer-reviewed citations would strengthen the evidence behind the claims.Industry-revered seal of quality as a brand you can trust.The chew base is typical for the category, using chickpea flour, pea flour, lecithin, palm oil, glycerin, cellulose, and tapioca starch. Chicken and beef flavor options help palatability, and no xylitol or propylene glycol was found.A carrier-safety rationale and palatability data would make the quality story stronger.Chicken and BeefThe soft-chew format and two flavor options make the product easy to offer. The page did not show weight-banded chew counts when reviewed, which limits practical clarity.Visible weight-based dosing and subscription details would improve daily usability.Senior Advanced 11-in-1 Multivitamin Bites for Senior DogsLast reviewed: May 19, 2026Sources: Product page · COA lookup11ZPZesty Paws Senior Advanced 11-in-1 Multivitamin Bites for Senior DogsZesty Paws (H&H Group) · Soft ChewZesty Paws Senior Advanced 11-in-1 is a mainstream senior chew built for broad daily support: joints, antioxidants, urinary health, skin, coat, and vitamins. It is easy to buy, ...Lot-Specific ResultsNASC Quality SealPublic Lab AccessLow-Dose ConcernDose Disclosure LimitedNarrower Support Scope65/100Disclosure Gaps
12Rank64.1/100Disclosure Gaps12RankABPowderAdored Beast Apothecary Vital Defense | Cellular Support
Adored Beast Apothecary · Powder
Longevity FormulaPowder64.1/100Disclosure GapsAdored Beast Vital Defense is a botanical cellular-support powder for owners who like algae, phytoplankton, spirulina, and mushroom-style ingredients. It is clean and simple on the excipient side, with no listed inactive ingredients. The catch: the active amounts are shown as minimums inside a larger blend, so buyers cannot see the exact amount of each ingredient.
Best forOwners who prefer botanical cellular support and are comfortable with less exact dose detail.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingDose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- Chaga, spirulina, and three named phytoplankton species.
- A powder format with no listed inactive ingredients.
- Weight-based serving guidance and a stated 6-month age floor.
What's not in it
- Exact per-active amounts for each ingredient.
- A public COA lookup or routine named testing lab.
- A broad longevity blend with NAD+, CoQ10, or cognitive ingredients.
Label snapshot5 botanicals · powder · minimums inside 156 mg blendChaga extract>=3 mgNannochloropsis gaditana>=3 mgChlorella vulgaris>=3 mgTetraselmis chui>=3 mgSpirulina platensis>=3 mgWhy this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsAdored Beast discloses minimum amounts for each botanical active inside a 156 mg total blend. That is better than hiding everything, but it is not the same as exact per-active dosing.Exact per-active milligram amounts and allocation of the full 156 mg blend would raise the score.2 scoops = 156 mg of Vital Defense | Chaga extract* (≥3 mg), Nannochloropsis gaditana CCAP 849/5* (≥3 mg), Chlorella vulgaris* (≥3 mg), Tetraselmis chui CCAP 8/6* (≥3 mg), Spirulina platensis* (≥3 mg)The formula is strongest as antioxidant and cellular-protection support. Chaga, phytoplankton, and spirulina bring polyphenols, carotenoids, SOD, EPA, and phycocyanin, but the product does not cover NAD+, mitochondria, cognition, or broad immune aging in a clearly separated way.Additional named actives for NAD+, mitochondrial, immune, or cognitive support would broaden the longevity coverage.Source of antioxidants that help protect against cell damage caused by free radicalsThe brand references oxalate testing at Dalhousie University, but that appears to be a specific study rather than routine batch testing. No public COA, routine testing panel, or named contract lab was shown.A public per-batch COA program with named lab testing would raise the score.Our powders have been tested at Dalhousie University and ranked very low...between 6-12mg/g of Chaga.The safety guidance is unusually specific. The brand gives a 6-month age floor, weight-based dosing, kidney-disease cautions around oxalates, and vet-consult language.Pregnancy and lactation guidance, plus separate dog and cat validation, would make it stronger.Speak to your veterinarian before use if your pet has been diagnosed with kidney disease.The formula is coherent as a botanical antioxidant powder: chaga plus microalgae and spirulina, selected for SOD, polyphenols, carotenoids, and related compounds. “Other ingredients: none” is a strong clean-label point.A formal formula rationale and exact doses would make the case more complete.Other Ingredients: NoneThe product claims mostly stay around normal cellular growth, repair, and antioxidant support. Some surrounding founder language about chronic disease and declining lifespans makes the positioning more anxiety-driven.Finished-formula evidence and more restrained aging context would improve the score.Helps support normal cellular growth & repairThis is one of the cleanest supporting-ingredient profiles in the set. The brand states there are no other ingredients, so there are no sweeteners, chew binders, glycerin, palm oil, or propylene glycol disclosed.A documented palatability rationale would be needed for a perfect score.Other Ingredients: NoneThe five-band weight-based dosing is detailed, and a subscription or deferred-purchase option is available. The routine is less smooth because the dosing units shift between scoops and fractions of a teaspoon.Consistent measuring units and less daily mixing friction would improve usability.5-15 lbs: 2 scoops · 16-39 lbs: 6 scoops · 40-59 lbs: 1/2 tsp · 60-89 lbs: 3/4 tsp · 90+ lbs: 1 tspLast reviewed: May 19, 2026Sources: Product page · Manufacturing page12ABAdored Beast Apothecary Vital Defense | Cellular SupportAdored Beast Apothecary · Powder · Core Longevity FormulaAdored Beast Vital Defense is a botanical cellular-support powder for owners who like algae, phytoplankton, spirulina, and mushroom-style ingredients. It is clean and simple on ...Aging Biology FocusClean FormulaMade In USADose Disclosure LimitedNarrower Support Scope64.1/100Disclosure Gaps
13Rank63.1/100Disclosure Gaps13RankPWLiquidOld Friend — Immune System & Joint Health for Senior Dogs
Pet Wellbeing · Liquid
Botanical SupportLiquidProprietary Blend63.1/100Disclosure GapsPet Wellbeing Old Friend is a liquid herbal supplement for senior dogs, built around eight herbs including reishi, astragalus, eleuthero, guggul, alfalfa, dandelion, and ginger. Its safety cautions are stronger than many products in this set, especially around medications and pregnancy. The catch: the herbs are disclosed as a total blend, not with individual amounts.
Best forOwners who prefer traditional herbal support and are comfortable giving a liquid by dropper twice daily.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingDose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- Eight named herbs in a liquid tincture for senior immune and joint support.
- NASC, Made in USA, and cGMP manufacturing signals.
- Detailed drug-interaction and pregnancy cautions.
What's not in it
- Individual amounts for each herb.
- A public COA lookup or named independent testing lab.
- A once-daily chew or powder format.
Label snapshot · proprietary8 herbs · 403 mg/ml total · per-herb amounts not disclosed · liquid tinctureNOT PUBLICLY DISCLOSED?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsOld Friend lists the herbs, but it does not disclose per-herb amounts. The formula is given as a total liquid concentration, so buyers cannot see how much of each botanical their dog receives.Per-herb milligram amounts would raise this score substantially.Old Friend is formulated with: Alfalfa herb (Medicago sativa), Guggul gum (Commiphora mukul), Reishi mushroom (Ganoderma lucidum), Astragalus root (Astragalus membranaceous), American Ginseng root (Panax quinquefolium), Eleuthero root (Eleutherococcus senticosus), Dandelion root (Taraxacum officinale), Ginger rhizome (Zingiber officinale)The formula is a traditional herbal blend with the clearest aging-relevant support in immune and joint comfort areas. It does not disclose specific NAD+, mitochondrial, or senolytic actives.Named and dosed NAD+, mitochondrial, or cellular-aging ingredients would broaden the longevity coverage.Supports cognitive function for sharpness and clarity · Helps maintain steady energy levels and comfortable joint mobility · Supports immune system health · Helps promote holistic wellness in senior dogsThe brand says every herb and batch is third-party tested and also cites NASC membership, GMP requirements, and an FDA-registered facility. It does not name the lab or provide a public COA lookup.A named lab and public COA lookup would raise the score.Every herb and batch of our Old Friend is third-party tested to ensure purity and highest quality.This product has strong caution language. It covers pregnancy, veterinary consultation, drug interactions, hypoglycemic effects, hypertension, anxiety, and seven weight-based dropper bands.A clear puppy age floor and separate species-specific validation would make the safety profile stronger.Not to be used during pregnancy. An examination from a veterinarian is recommended prior to using this product. Do not use with blood thinners. May affect blood levels of cyclophosphamide, acetaminophen, diltiazem, propranolol or lead to alteration of thyroid hormone replacement dose. Use caution with cardiac glycosides, MAOIs and in hypertension. Monitor blood sugar if using blood-sugar-lowering drugs. May have hypoglycemic effects. May be contraindicated in animals with hypertension and anxiety.The formula lists eight herbs by common and Latin names and sits within a holistic-veterinarian design context. The missing piece is per-herb dosing and a clearer explanation of each herb's role.Per-herb amounts and a published herbal rationale would improve the score.Designed by a holistic veterinarianThe claims stay mostly in qualified language such as helps maintain, supports, and helps promote. Aging language is restrained and does not claim to extend lifespan or cure disease.A named holistic veterinarian and finished-formula study would strengthen the evidence.help your dog age with grace · support them well into their golden years · navigating the normal changes that often come with ageThe liquid uses a minimal carrier system: deionized water, vegetable glycerin, and natural bacon flavor. No xylitol, propylene glycol, added sugar, or artificial sweetener was disclosed.The natural bacon flavor source and extreme-dose carrier safety are not fully documented.Deionized water, natural bacon flavor, vegetable glycerinThe seven-band dropper dosing is clear, and the product does not require refrigeration. Subscribe-and-save tiers and a satisfaction guarantee help the buying routine.Twice-daily liquid dosing is more work than a once-daily chew.Administer product twice daily. Can be given during or after mealtime. · 10 lb and under: 0.25 ml twice daily · 11-20 lb: 0.5 ml twice daily · 21-40 lb: 1.0 ml twice daily · 41-60 lb: 1.5 ml twice daily · 61-80 lb: 2.0 ml twice daily · 81-100 lb: 2.5 ml twice daily · Over 100 lb: 3.0 ml twice dailyLast reviewed: May 19, 2026Sources: Product page13PWOld Friend — Immune System & Joint Health for Senior DogsPet Wellbeing · LiquidPet Wellbeing Old Friend is a liquid herbal supplement for senior dogs, built around eight herbs including reishi, astragalus, eleuthero, guggul, alfalfa, dandelion, and ginger....Clean FormulaNASC Quality SealMade In USADose Disclosure LimitedNarrower Support Scope63.1/100Disclosure Gaps
14Rank61/100Disclosure Gaps14RankBPSoft ChewBoops Pets Longevity & Healthy Aging NAD+ Precursor Soft Chews for Dogs
Boops Pets · Soft Chew
Longevity FormulaSoft Chew61/100Disclosure GapsBoops Longevity & Healthy Aging NAD+ Precursor is a soft chew with a clear healthy-aging angle: NAD+ support, plus ingredients like quercetin, vitamin C, niacinamide, and resveratrol. It is more directly longevity-positioned than most senior chews. The catch: the active doses were not visible in the public text we reviewed, and the testing claim does not name the lab.
Best forOwners who want a longevity-positioned chew and care more about convenience than full public dose detail.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingLow-Dose Concern
Some active ingredients appear to be present at levels that may be difficult to interpret as meaningful daily support based on public label information.
Dose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
What's in it
- A soft chew naming NR, quercetin, vitamin C, niacinamide, and resveratrol.
- Adult and senior dog positioning with a daily chew format.
- A public claim that components are independently tested.
What's not in it
- Machine-readable active amounts on the main product page.
- A named independent testing lab or public COA lookup.
- A published clinical trial or named veterinary formulator.
Label snapshot5 named actives · chew · doses not in PDP textNOT PUBLICLY DISCLOSED?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsBoops names the active ingredients, including NR, quercetin, vitamin C, niacinamide, and resveratrol. The issue is that the readable product page does not show per-active milligram amounts in text.A machine-readable supplement facts panel with per-active doses would raise the score.Nicotinamide Riboside, Quercetin, Ascorbic Acid / Vitamin C, Niacinamide / Vitamin B3, ResveratrolThe named actives cover two credible areas: NAD+ support and antioxidant/cellular resilience. Because the doses are not visible in text, the strength of those areas cannot be verified.Disclosed doses and additional mitochondrial, immune, or cognitive actives would improve the longevity coverage.helps adult & senior dogs maintain healthy cellular function while supporting normal energy levels and cognitive functionThe brand says the product is third-party tested and shows a certified testing badge. It does not name the lab, list the testing scope, or provide a public COA.A named lab, public COA, and batch-linked lookup would raise the score.All components are verified through independent third-party testing to ensure quality and consistency in every batch.The product is aimed at adult and senior dogs, and the FAQ includes pregnancy/lactation caution plus a vet-consult note for dogs with medical conditions. Weight-based feeding is referenced but not listed in readable text.A specific minimum age, visible weight-band amounts, and overdose guidance would improve safety clarity.This product is not intended for use in pregnant or lactating dogs.The formula has a sensible NAD+ plus antioxidant concept and no visible proprietary blend. The problem is that the exact doses are not available in machine-readable text.A published formula rationale and public per-active doses would make the formula easier to verify.As pets age, natural changes in NAD+ related cellular energy processes can affect everyday vitality.The claims are acceptable and stay around cellular function, activity, alertness, and engagement. The public page does not name the vets behind the “Formulated by Vets” claim or cite finished-formula research.A named veterinary formulator and finished-formula evidence would raise the score.maintain healthy cellular functionThe chicken-flavored soft chew uses a standard base with chicken, coconut oil, flaxseed, tocopherols, natural flavor, cellulose, lecithin, tapioca starch, glycerin, and yeast. No xylitol, propylene glycol, added sugar, or artificial sweetener was visible.A stronger carrier-safety and palatability rationale would improve the quality story.Chicken, Coconut Oil, Flaxseed, Mixed Tocopherols (as an antioxidant), Natural Flavor, Powdered Cellulose, Sunflower Lecithin, Tapioca Starch, Vegetable Glycerin, YeastA daily soft chew is easy for most owners. The product offers a subscription model, but exact weight-band serving amounts appear to live in an image rather than readable page text.Readable weight-band dosing and a visible subscription discount would improve usability.weight-based feeding directionsLast reviewed: May 19, 2026Sources: Product page · FAQ page · Manufacturing page14BPBoops Pets Longevity & Healthy Aging NAD+ Precursor Soft Chews for DogsBoops Pets · Soft Chew · Core Longevity FormulaBoops Longevity & Healthy Aging NAD+ Precursor is a soft chew with a clear healthy-aging angle: NAD+ support, plus ingredients like quercetin, vitamin C, niacinamide, and resver...Aging Biology FocusMade In USALow-Dose ConcernDose Disclosure Limited61/100Disclosure Gaps
15Rank60/100Disclosure Gaps15RankLYSoft ChewLeap Years for Senior Dogs
Animal Biosciences · Soft Chew
Longevity FormulaSoft ChewProprietary Blend60/100Disclosure GapsLeap Years is one of the few products here built specifically around dog aging, not just senior wellness. It uses a two-chew system: one daily NAD+ booster and a twice-weekly chew that adds senolytic-style support. The catch: the formulas are proprietary, so buyers cannot see the individual active ingredients or their exact amounts.
Best forOwners who want a longevity-specific chew with published finished-formula clinical evidence and are comfortable with a proprietary formula.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingLow-Dose Concern
Some active ingredients appear to be present at levels that may be difficult to interpret as meaningful daily support based on public label information.
Dose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
What's in it
- A two-chew system for NAD+ support and senolytic-style healthy-aging support.
- Published clinical-trial support for the finished Leap Years system.
- Weight-based chew sizes for dogs at different body weights.
What's not in it
- Full public ingredient identity and per-active amounts.
- A public COA lookup or named independent testing lab.
- A broad ingredient panel for antioxidants, immune support, or everyday senior nutrition.
Label snapshot · proprietaryProprietary two-chew system · LY-D6 600 mg / LY-D2 200 mg totalNOT PUBLICLY DISCLOSED?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsLeap Years discloses chew-level totals, but not the individual active ingredients or their amounts. The LY-D2 and LY-D6 codes function like proprietary formulas from the buyer's point of view.Naming the NAD+ and senolytic ingredients with per-active milligram amounts would raise this score.LY-D2 (brown): 200mg NAD Booster · LY-D6 (golden): 600mg combined NAD Booster and senolyticLeap Years clearly separates two major aging mechanisms: daily NAD+ support and twice-weekly senolytic support. The concept is focused and mechanistically clear.It does not separately cover mitochondrial, immune, antioxidant, or cognitive support with named actives.Senescent cells consume increased amounts of NAD+, depleting cellular reserves. Leap Years® is specifically designed to support the natural clearance of senescent cells so that NAD+ can be fully utilized by the body's healthy cells.The brand says it uses US GMP facilities, an FDA-audited supply chain, and registered-lab testing for label claims. It does not name the lab or provide public COAs.A named third-party lab and public COA lookup would improve the testing score.tested in a registered laboratoryLeap Years gives unusually specific age guidance, excluding puppies and young dogs under 50% of expected lifespan. It also uses five weight bands and references a dog safety study at 10 times the daily dose.Pregnancy and lactation warnings would be especially important given the senolytic positioning.The safety study conducted in dogs with daily dosages of 10X and 30X over 14 days showed no changes in clinical signs, blood hematology and chemistry, and organ pathology.The two-chew system makes sense: one daily NAD+ booster and one twice-weekly senolytic combination. The weakness is that the actual ingredient identities and amounts are proprietary.Public per-ingredient disclosure for LY-D2 and LY-D6 would make the formula much easier to evaluate.On two consecutive days, you give the light-colored combination soft chews (LY-D6, NAD booster and senolytic). Daily after that, you give the dark-colored (LY-D2) soft chews all the rest of the days.Leap Years has the strongest finished-formula evidence in the competitor set, with a published double-blind, placebo-controlled study through North Carolina State University. The claims are assertive, but they stop short of direct lifespan-extension or cure language.The score would be even stronger if the tested formula were not proprietary at the ingredient level.Leap Years® slows the effects of aging in dogsThe synthetic beef flavor is an intentional allergen-friendly choice because the chew contains no animal proteins. The full carrier and binder list was not publicly itemized.Publishing the excipient list would allow a proper quality review.synthetic beef flavor with no animal proteins (common allergens) includedThe soft-chew format and five size bands are practical, and subscription delivery is offered. The twice-weekly LY-D6 plus daily LY-D2 schedule adds more tracking than a simple daily product.Exact chew counts by size and a simpler cadence would improve daily use.Mini: <11 lbs · Small: 11-22 lbs · Medium: 23-54 lbs · Large: 55-77 lbs · X-Large: >77 lbsLast reviewed: May 19, 2026Sources: Product page · FAQ page · Published documentation15LYLeap Years for Senior DogsAnimal Biosciences · Soft Chew · Core Longevity FormulaLeap Years is one of the few products here built specifically around dog aging, not just senior wellness. It uses a two-chew system: one daily NAD+ booster and a twice-weekly ch...Aging Biology FocusClinical Evidence PublishedMade In USALow-Dose ConcernDose Disclosure Limited60/100Disclosure Gaps
16Rank58.3/100Disclosure Gaps16RankAKTopperAustin and Kat Brady's Senior Blend Botanical Meal Topper
Austin and Kat · Topper
Botanical SupportTopperProprietary Blend58.3/100Disclosure GapsAustin and Kat Brady’s Senior Blend is a botanical meal topper for senior dogs, with ingredients like fish oil, lion’s mane, ashwagandha, cranberry, glucosamine, blueberry, and curcumin. It feels more like a premium topper than a standard vitamin chew. The catch: the product lists the ingredients but does not show individual active amounts.
Best forOwners who want a premium botanical topper for a senior dog and care less about exact dose detail.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaPublic Lab AccessLot-Specific ResultsNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingLow-Dose Concern
Some active ingredients appear to be present at levels that may be difficult to interpret as meaningful daily support based on public label information.
Dose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- A senior topper with fish oil, lion’s mane, ashwagandha, cranberry, glucosamine, blueberry, and curcumin.
- NASC Quality Seal and lot-number lab-result access on the brand site.
- A carrier-free powder topper with no listed inactive ingredients.
What's not in it
- Individual amounts for each active ingredient.
- A named independent testing lab on the quality page.
- A long-lasting pack for larger dogs at the recommended serving size.
Label snapshot · proprietary8 botanical actives, no doses disclosedNOT PUBLICLY DISCLOSED?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsAustin and Kat lists eight active ingredients, but it does not disclose per-serving milligram amounts. The serving size is clear, but buyers cannot calculate the dose of curcumin, lion's mane, ashwagandha, DHA, or EPA.Per-ingredient milligram amounts would raise the score.Fish Oil powder from Sardine & Anchovy, USDA Organic Lion's Mane Mushroom, Ashwagandha Root Extract, Cranberry Extract, Nutritional Yeast, Glucosamine HCL (plant-based), Blueberry Extract, Longvida SD™ Optimized CurcuminThe named ingredients plausibly cover cognition through lion's mane and DHA, and antioxidant/inflammatory support through curcumin, ashwagandha, and blueberry. The issue is that dose strength is not visible.Dosed mapping of each active to a specific aging role would strengthen the longevity score.botanicals, adaptogens, lion's mane, and fish extracts rich in DHA/EPAThe brand claims third-party testing and has a lot-number COA lookup. The weakness is that the lab is not named and the visible COA library appears focused more on hemp/CBD lots than this senior topper.Clearly indexed Senior Blend COAs and a named third-party lab would raise the score.You bet! We spare no expense when it comes to quality assuranceThe half-teaspoon-per-25-lb dosing is clear. The safety page did not show pregnancy, lactation, puppy, or clear vet-consult warnings for this botanical blend.Ashwagandha and curcumin deserve visible vet-consult and interaction cautions.Give one half-teaspoon for every 25 lbs of pet weight, per day.The formula has a thoughtful botanical senior-support concept and uses Longvida curcumin, which signals deliberate sourcing. The roles are grouped in marketing buckets like cognition, joints, heart, and kidneys, but not supported with doses.A dose-level formula rationale would make the logic much stronger.Cognitive Health · Joint Mobility · Heart Support · Kidney HealthThe brand avoids direct disease, cure, or lifespan-extension claims and uses more lifestyle-style aging language. “Proven senior support” is the weak point because no study is named on the page.A finished-formula study citation would support the stronger proof language.Make age just a number with this natural but powerful formulation.The topper is carrier-free, with “Other ingredients: none.” Palatability comes naturally from fish oil powder and nutritional yeast rather than glycerin, palm oil, sugars, or artificial sweeteners.A named palatability system would help for picky dogs.Other ingredients: NoneThe half-teaspoon-per-25-lb dosing is easy to scale, and subscription is available. The savory topper format fits food mixing well.Daily mixing and a roughly 24-day pack life for a 50 lb dog create reorder and routine friction.$29.95 one-time; 15% discount available via subscriptionLast reviewed: May 19, 2026Sources: Product page · Manufacturing page · COA lookup16AKAustin and Kat Brady's Senior Blend Botanical Meal TopperAustin and Kat · TopperAustin and Kat Brady’s Senior Blend is a botanical meal topper for senior dogs, with ingredients like fish oil, lion’s mane, ashwagandha, cranberry, glucosamine, blueberry, and ...Lot-Specific ResultsNASC Quality SealPublic Lab AccessLow-Dose ConcernDose Disclosure LimitedNarrower Support Scope58.3/100Disclosure Gaps
17Rank57.8/100Disclosure Gaps17RankCVCapsuleCeva Senilife
Ceva Animal Health (registered trademark of Innovet Italia S.R.L.) · Capsule
Brain Aging SupportCapsule57.8/100Disclosure GapsSenilife is a senior cognition capsule from Ceva, focused on age-related brain and behavior support. It uses phosphatidylserine, ginkgo, vitamin B6, vitamin E, and resveratrol rather than a broad senior multivitamin blend. The catch: most of the useful dose detail came from a retailer listing, not the brand’s own main page, and the formula is narrow by design.
Best forOwners who are mainly focused on senior dog cognition and are comfortable with a capsule format.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingNarrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- Five cognitive-support ingredients, including phosphatidylserine, ginkgo, B6, vitamin E, and resveratrol.
- Per-capsule amounts found on a public retailer listing.
- A clear brain-aging focus from an animal-health company.
What's not in it
- Broad support for joints, NAD+, mitochondria, or immune health.
- A public COA lookup or named independent testing lab.
- A clean excipient profile; the capsule includes color additives.
Label snapshot5 actives, all dose-disclosed via retailer fallbackPhosphatidylserine62.5 mgGinkgo biloba25 mgPyridoxine (B6)51.25 mgD-alpha-tocopherol83.87 mgResveratrol12.5 mgWhy this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsAll five captured actives are dose-disclosed at per-capsule amounts through the public retailer listing. The brand-owned site itself does not show the full supplement facts panel.Publishing the dose panel on the brand site would raise the score.Phosphatidylserine: 62.5 mg; Ginkgo Biloba extract: 25 mg; Pyridoxine: 51.25 mg; D-alpha-tocopherol: 83.87 mg; Resveratrol (Grape Extract): 12.5 mgSenilife is a focused cognitive-aging supplement. Its ingredients support brain-cell communication, cerebral blood flow, antioxidant defense, and brain function, but they all point mainly toward cognition.Broader NAD+, mitochondrial, immune, or cellular-resilience support would be needed for a higher longevity score.Senilife is a supplement containing a unique blend of antioxidants — phosphatidylserine, pyridoxine, ginko biloba extract, resveratrol and d-alpha-tocopherolNo public third-party testing language, named lab, COA lookup, or NASC seal was found on the brand site. Vet-pharma distribution helps credibility, but it does not replace public testing proof.A public testing page with a named lab or batch-linked COA would raise the score significantly.The product gives weight-banded capsule dosing and includes an anticoagulant caution. That is a useful safety detail for a cognition supplement.Public puppy, pregnancy, lactation, senior-age, and vet-consult guidance would improve the score.Senilife is contraindicated in pets receiving anti-coagulation medications.The formula is tightly focused on cognitive aging, and each active has an understandable role: phosphatidylserine, ginkgo, resveratrol, vitamin E, and pyridoxine. There is no proprietary blend hiding the active list.A standalone formula paper would make the rationale more authoritative.Phosphatidylserine: 'Improves nerve-cell communication'; Pyridoxine: 'Essential for normal brain development, function and heath'; Gingko Biloba Extract: 'Improves cerebral blood flow, increase glucose metabolism'; Resveratrol: 'Antioxidant which protects neurons from toxic substances'; D-alpha-tocopherol: 'Natural form of Vitamin E with strong antioxidant action'The brand stays mostly in behavior and aging-support language rather than disease-treatment claims. A retailer claim about effects in as little as 7 days is more aggressive and not clearly tied to visible evidence.Brand-linked study citations for phosphatidylserine-based canine cognition formulas would raise the score.Helping older dogs get back to lifeThe capsule inactives include cod liver oil, gelatin, glycerin, and seed oils, but also titanium dioxide and FD&C Red 40. Those colorants are unnecessary for a senior longevity-positioned product.Removing synthetic colorant and titanium dioxide, or publishing a safety rationale, would improve the score.Other ingredients: Cod liver oil, seed oil products, gelatin, glycerin, titanium dioxide, and FD&C Red 40.The capsule can be given whole or opened onto food, which helps pill-averse dogs. Weight-banded dosing is clear across three size groups.No direct subscription is visible, and large dogs need three capsules daily.You can place the entire capsule into your dog's mouth or place the full contents of the capsule directly onto your dog's foodLast reviewed: May 19, 2026Sources: Product page · Retailer listing17CVCeva SenilifeCeva Animal Health (registered trademark of Innovet Italia S.R.L.) · CapsuleSenilife is a senior cognition capsule from Ceva, focused on age-related brain and behavior support. It uses phosphatidylserine, ginkgo, vitamin B6, vitamin E, and resveratrol r...Every Dose DisclosedNarrower Support Scope57.8/100Disclosure Gaps
18Rank57.5/100Disclosure Gaps18RankNPPowderNative Pet Senior Daily Dog Vitamins & Supplements (12-in-1 Multivitamin Powder)
Native Pet · Powder
Senior WellnessPowder57.5/100Disclosure GapsNative Pet Senior Daily is a 12-in-1 powder for dogs 7+, with ingredients named for joints, cognition, heart, energy, gut, immune, skin, liver, and bladder support. Its biggest strength is the formulation credential: a board-certified veterinary nutritionist is named. The catch: the public pages reviewed did not show per-active amounts.
Best forOwners who want a vet-nutritionist-formulated senior powder and are less concerned about seeing every active dose.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingLow-Dose Concern
Some active ingredients appear to be present at levels that may be difficult to interpret as meaningful daily support based on public label information.
Dose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- A 12-in-1 senior powder with DHA, taurine, collagen, L-carnitine, CoQ10, cranberry, probiotics, pumpkin, pork plasma, vitamins, zinc, and beta carotene.
- A named board-certified veterinary nutritionist connected to the formula.
- Powder dosing at one scoop per 25 pounds.
What's not in it
- Public per-active amounts for the 12 named actives.
- A public COA lookup, NASC seal, or named independent testing lab.
- A dedicated NAD+ or cellular-aging supplement.
Label snapshot12 named actives · 0 doses disclosed · powderNOT PUBLICLY DISCLOSED?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsNative Pet names 12 active categories, but does not publish per-serving amounts for them. Without mg, mcg, IU, or CFU values, buyers cannot judge dose strength.A full supplement facts panel with per-active amounts would raise the score.DHA - brain health + cognitive function; Taurine - supports heart function; NT-II collagen - promotes joint health + mobility; L-carnitine + CoQ10 - heart health + energy metabolism; Cranberry extract - promotes bladder health; Probiotics - digestion + stool health; Prebiotic fiber (pumpkin) - feeds beneficial gut bacteria; Pork plasma - digestion + immune support; Vitamin E - antioxidant + skin protection; Vitamin C - antioxidant + immune support; Zinc - skin health + allergy support; Beta carotene - antioxidant + immune supportThe named actives suggest support for cellular energy through L-carnitine and CoQ10, antioxidant defense through vitamins C and E plus beta carotene, and cognition through DHA. The lack of doses keeps the coverage hard to verify.Published doses are needed before the strength of each aging-support area can be judged.Daily support for dogs over 7, designed for how they age.No public third-party testing claim, lab name, COA, NASC seal, or batch lookup was visible on the brand page or homepage when reviewed. That leaves the testing proof very thin.A named lab, public COA lookup, NASC participation, or test-scope language would raise the score.The product page gives a senior age floor and weight-based scoop dosing. It did not show explicit puppy, pregnancy, or lactation warnings.Sensitive-population warnings and condition-specific cautions would improve the safety guidance.We recommend starting Senior Daily around the time your dog turns 7 years old.The 12-in-1 framing maps ingredients to many senior-support categories, including joints, cognition, heart, immune, skin, gut, liver, bladder, allergy, energy, inflammatory support, and digestion. The roles are named, but the doses are not visible.A formula rationale and disclosed per-active doses would make the support claims easier to verify.Daily support for dogs over 7, designed for how they age.The claim language is generally responsible and focuses on how dogs age rather than promising cures or longer life. The named board-certified veterinary nutritionist also improves credibility.A finished-formula study and specific citations for “clinically researched ingredients” would raise the score.Dr. Dan Su, MS, DVM, DACVIM (Nutrition)The powder format avoids typical chew fillers like glycerin, palm oil, and lecithin. Beef and goat milk give it a more deliberate palatability system.The full inactive ingredient list was not visible, so the complete excipient profile could not be verified.Savory beef and creamy goat milk coat every biteThe one-scoop-per-25-lb dosing is simple, and powder can be added to food. Amazon Subscribe & Save also supports recurring use.Some owners and dogs will still find daily powder mixing less convenient than chews.Use 1 scoop per 25 lbs of body weight, given daily.Last reviewed: May 19, 2026Sources: Retailer listing · Product page · Manufacturing page18NPNative Pet Senior Daily Dog Vitamins & Supplements (12-in-1 Multivitamin Powder)Native Pet · PowderNative Pet Senior Daily is a 12-in-1 powder for dogs 7+, with ingredients named for joints, cognition, heart, energy, gut, immune, skin, liver, and bladder support. Its biggest ...Low-Dose ConcernDose Disclosure LimitedNarrower Support Scope57.5/100Disclosure Gaps
19Rank53/100Disclosure Gaps19RankPHSoft ChewPetHonesty Multivitamin 10-in-1 Chews for Senior Dogs (Duck Flavor)
Pet Honesty · Soft Chew
Senior WellnessSoft Chew53/100Disclosure GapsPetHonesty Senior Multivitamin 10-in-1 is a broad senior chew for dogs 7+, covering common categories like joints, digestion, skin, coat, immune support, heart, vision, and energy. It is easy to understand as an everyday senior chew. The catch: the label does not publicly show the individual amounts for most active ingredients.
Best forOwners who want a familiar senior multivitamin chew and are not looking for detailed dose transparency.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingLow-Dose Concern
Some active ingredients appear to be present at levels that may be difficult to interpret as meaningful daily support based on public label information.
Dose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- A broad senior chew with glucosamine, chondroitin, taurine, L-carnitine, vitamins, probiotics, turmeric, and beta carotene.
- A seven-strain probiotic blend listed at 1 billion CFU total.
- Weight-based serving guidance and a 7+ senior age target.
What's not in it
- Individual amounts for most actives.
- A public COA lookup, NASC seal, or named independent testing lab.
- Public manufacturing-country and facility-certification detail.
Label snapshot10 named-benefit categories · only total CFU disclosed · soft chewProbiotic blend (7 strains)1 billion CFU totalWhy this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsPetHonesty lists many ingredients and states a total probiotic CFU number, but it does not show per-active amounts. Buyers cannot see the dose for each vitamin, botanical, joint ingredient, or probiotic strain.A supplement facts panel with per-active mg, mcg, IU, and CFU values would raise the score.Oat Flour, Vegetable Glycerin, Brewer's Yeast, Yuca, Glucosamine Hydrochloride, Marine Microalgae, L-Carnitine, Sunflower Lecithin, Natural Flavor, L-Ascorbyl-2-Polyphosphate, Taurine, Chondroitin Sulfate, Vitamin E Supplement, Natural Duck Flavor, Dried Kelp, Cranberry, Citric Acid, Vinegar, Egg Shell Meal, Carrot, Kale, Pumpkin Seed, Sweet Potato, Blueberry, Turmeric, Ginger, Flaxseed, Coconut Oil, Beta Carotene, Dried Bacillus subtilis Fermentation Product, Apple Cider Vinegar, Niacin, Dried Bifidobacterium bifidum Fermentation Product, Dried Enterococcus faecium Fermentation Product, Dried Lactobacillus acidophilus Fermentation Product, Dried Lactobacillus brevis Fermentation Product, Dried Lactobacillus fermentum Fermentation Product, Dried Lactobacillus delbrueckii Fermentation Product, Dried Lactobacillus plantarum Fermentation Product, Mixed Tocopherols (Preservative), Vitamin A Supplement, Manganese Proteinate, Zinc Proteinate, Thiamine Mononitrate, Biotin, Vitamin D3 Supplement, Calcium Pantothenate, Pyridoxine Hydrochloride, Riboflavin, Folic Acid, Vitamin B12The product appears to cover antioxidant support, immune/gut support, and cellular-energy support through named ingredients like vitamins, turmeric, blueberry, probiotics, taurine, and L-carnitine. Dose absence keeps the strength of those areas uncertain.Disclosed doses and more targeted NAD+ or cellular-aging ingredients would improve the longevity score.ten different vitamins, nutrients and supplementsNo third-party testing statement, lab name, COA portal, NASC seal, or batch lookup was visible on the reviewed surfaces. Public testing proof is essentially absent.A named lab, public COA lookup, NASC seal, or clear testing scope would raise the score.The product gives a clear 7+ senior age floor and four weight-banded chew counts. It does not show pregnancy, lactation, puppy, or drug-interaction cautions.Sensitive-population warnings and condition-specific cautions would improve the safety score.Specifically formulated for dogs and older dogs (7+ years).The 10-in-1 framework maps ingredients to common senior needs such as skin, joints, immunity, energy, digestion, heart, vision, and organs. The probiotic strains are named, but individual active doses are missing.A formula rationale and disclosed doses would make the blend easier to evaluate.PhD CRAFTED, VET APPROVEDThe claims are mixed but mostly stay within support language. Press mentions and “PhD crafted, vet approved” help marketing credibility, but they are not the same as clinical evidence.A finished-formula clinical trial would strengthen the claims beyond press and credential signals.The best overall dog multivitamin of 2024The duck-flavored soft chew uses a standard base with oat flour, glycerin, brewer's yeast, yucca, lecithin, and natural duck flavor. No xylitol, propylene glycol, or species-contraindicated carrier was found.A per-excipient safety rationale and palatability documentation would improve the quality score.Natural Duck FlavorThe soft-chew format, four weight bands, and 20% Subscribe & Save discount make this easy to work into a routine. The daily instructions are clear.Large dogs need up to four chews daily, which may be a burden for picky eaters.Give one chew daily per 25lbs of weight.Last reviewed: May 19, 2026Sources: Product page · Manufacturing page19PHPetHonesty Multivitamin 10-in-1 Chews for Senior Dogs (Duck Flavor)Pet Honesty · Soft ChewPetHonesty Senior Multivitamin 10-in-1 is a broad senior chew for dogs 7+, covering common categories like joints, digestion, skin, coat, immune support, heart, vision, and ener...Low-Dose ConcernDose Disclosure LimitedNarrower Support Scope53/100Disclosure Gaps
20Rank52.9/100Disclosure Gaps20RankVFSoft ChewVeterinary Formula Smart Vitality Senior Support for Dogs
SynergyLabs · Soft Chew
Senior WellnessSoft ChewProprietary Blend52.9/100Disclosure GapsVeterinary Formula Smart Vitality Senior Support is a pork-flavored soft chew for older dogs, with ingredients named for joints, gut, immune support, and skin and coat. It fits the broad senior-maintenance lane more than the true longevity lane. The catch: the public product page did not show individual active amounts.
Best forOwners who want a low-friction senior chew for broad everyday support and do not need full public dose detail.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingDose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- Named ingredients including glucosamine, chondroitin, turkey tail, probiotics, flaxseed oil, vitamin E, lutein, and biotin.
- A pork-flavored soft-chew format.
- Brand-level cGMP and NASC participation signals.
What's not in it
- Per-serving amounts for the listed actives.
- A visible CFU amount for the probiotic blend.
- A named independent testing lab or public COA lookup.
Label snapshot · proprietary8 named actives · doses not publicly disclosed · soft chewNOT PUBLICLY DISCLOSED?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsThe page names the actives but does not show individual amounts for them. Even the probiotic blend is named without a visible total CFU value on the brand page.Public per-serving doses for each active would move this above the current level.Glucosamine HCl · Chondroitin Sulfate · Turkey Tail Mushroom Extract · Probiotic Blend (Enterococcus faecium, Bacillus subtilis, Bacillus licheniformis, Bacillus amyloliquefaciens) · Flaxseed Oil · Vitamin E · Lutein · BiotinThis is a broad senior-support chew for joints, gut, immune health, skin and coat, and eye/cognitive support. It does not read as a targeted longevity product because NAD+, mitochondria, and cellular senescence are not addressed.NAD+ support, a mitochondrial active, or a senolytic ingredient would improve the longevity score.Help support their overall health with this multi-functional supplement that may keep them moving like a young pupThe parent company references cGMP manufacturing and NASC community participation. The specific product page does not show a lab name, test scope, or public COA.A named third-party lab, testing scope, and public COA would raise the score.Produced under current Good Manufacturing Practices for quality and consistency. Part of the NASC community, supporting high standards for quality and responsible manufacturing.The page states that the product is for dogs only. It does not show a clear age floor, puppy warning, pregnancy/lactation warning, or readable weight-banded dosing values.Age guidance, sensitive-population warnings, and visible weight-based dosing would raise the score.For use in dogs onlyThe formula is grouped around broad senior benefits such as joints, gut, skin and coat, and immunity. Without doses or a deeper rationale, the ingredient logic stays fairly basic.Per-active dose disclosure and a published formula rationale would improve the score.Help support their overall health with this multi-functional supplement that may keep them moving like a young pupThe brand uses qualified language such as “may keep them moving like a young pup” and broad science-backed positioning. It does not cite a specific finished-formula trial on the product page.A clinical-trial citation or peer-reviewed evidence anchor would improve the claim support.science-backed products trusted by millions of pet parents worldwideThe pork-flavored soft chew uses standard carriers like coconut glycerin and tapioca starch. Honey and molasses are included for palatability, which makes it less clean than no-added-sugar competitors.Removing added-sugar carriers or explaining their use would improve the quality score.Brewer's Yeast, Citric Acid (preservative), Coconut Glycerin, Dried Whey, Hickory Smoke Flavor, Honey, Mixed Tocopherols (preservative), Molasses, Pork Liver Powder, Rosemary Extract, Tapioca Starch, Wild Alaskan Pollock OilA pork-flavored soft chew is easy for many dogs to take. The product page references weight-based dosing, but the exact chew counts were not retrievable from the rendered page.Visible weight-banded chew counts and subscription details would improve usability.Help support their overall health with this multi-functional supplement that may keep them moving like a young pupLast reviewed: May 19, 2026Sources: Product page · Retailer listing · Manufacturing page20VFVeterinary Formula Smart Vitality Senior Support for DogsSynergyLabs · Soft ChewVeterinary Formula Smart Vitality Senior Support is a pork-flavored soft chew for older dogs, with ingredients named for joints, gut, immune support, and skin and coat. It fits ...NASC Quality SealDose Disclosure LimitedNarrower Support Scope52.9/100Disclosure Gaps
21Rank52.4/100Disclosure Gaps21RankARChewArterra Adult Longevity Multivitamin Soft Chew
Arterra Pet Science (Austin, TX) — manufactured at an FDA-registered cGMP facility in Florida · Chew
Multi-Benefit DailyChewProprietary Blend52.4/100Disclosure GapsArterra Adult Longevity Multivitamin is a very broad daily chew built to cover many wellness categories at once. It includes 39 ingredients across gut, joint, antioxidant, immune, cognition, organ, adaptogen, and longevity blends, with an owner-friendly soft-chew format. The catch: the formula is built around proprietary blends, so buyers cannot see the dose of any individual active.
Best forOwners who want an all-in-one daily longevity multivitamin chew and are comfortable trading dose clarity for broad ingredient coverage.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingLow-Dose Concern
Some active ingredients appear to be present at levels that may be difficult to interpret as meaningful daily support based on public label information.
Dose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
What's in it
- Eight named proprietary blends covering gut, antioxidants, joints, immune support, cognition, organs, adaptogens, and longevity.
- A longevity blend that includes PQQ, quercetin, trans-pterostilbene, L-carnosine, and jiaogulan.
- NASC Preferred Supplier positioning, cGMP manufacturing, weight-banded serving guidance, and Filet Mignon flavor.
What's not in it
- No per-ingredient milligram disclosure for the 38 actives inside the proprietary blends.
- No public finished-formula clinical trial; the announced senior-dog study was still recruiting at review.
- No public COA, batch lookup tool, or named third-party testing lab for buyers to verify each lot.
Label snapshot · proprietary8 proprietary blends · 38 actives plus alpha lipoic acid in a 5g soft chewNOT PUBLICLY DISCLOSED?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsAll 38 actives are grouped into 8 named proprietary blends (Gut Support, Antioxidant, Joint Support and Comfort, Immune Support and Detox, Cognition and Mood Support, Organ Support, Longevity, Adaptogen) plus standalone Alpha Lipoic Acid. The public ingredients library does not disclose per-ingredient milligrams. It also does not disclose per-blend total milligrams.Per-ingredient milligrams absent across all 8 blends on every public surface. Per-blend total milligrams also not disclosed. Disclosing per-blend mg would lift to tier 4; disclosing per-active mg would lift to tier 7+.Proprietary Gut Support Blend · Proprietary Antioxidant Blend · Proprietary Joint Support and Comfort Blend · Proprietary Immune Support and Detox Blend · Proprietary Cognition and Mood Support Blend · Proprietary Organ Support Blend · Proprietary Longevity Blend · Proprietary Adaptogen BlendEight named proprietary blends plus standalone Alpha Lipoic Acid map to six-plus distinct aging-relevant pathways: NAD-adjacent / cellular senescence (Longevity blend: PQQ, quercetin, trans-pterostilbene, L-carnosine, jiaogulan), oxidative stress (Antioxidant blend: astaxanthin, EGCG green tea, NAC; plus ALA), mitochondrial / organ energetics (Organ blend: CoQ10, taurine,…Pathway breadth is high on paper, but the proprietary blend structure makes it impossible to verify whether any single pathway is supported at a meaningful dose.Proprietary Longevity Blend: Jiaogulan Leaf Extract, L-Carnosine, PQQ Disodium Salt, Quercetin Dihydrate, Trans-PterostilbeneBrand asserts manufacturing at a 'state-of-the-art, FDA-registered production facility in Florida' with cGMP, NSF, UL GMP, and NASC Preferred Supplier status. NASC membership is confirmed via VAERS adverse-event reporting language.Third-party lab not named (NSF and UL are cited as facility-level certifications, not as the testing lab). No public COA. No batch-linked lookup. A named NSF/Eurofins-class lab plus a public COA or batch-lookup would lift to tier 7-8.Every raw material included in our products is tested before going into our products for three key variables: Heavy metals, Microbiological contamination, Identity, and PotencyPublic surfaces disclose a clear age floor (dogs 1+ years; puppies excluded), three weight-banded servings (1-20 lbs, 21-49 lbs, 50+ lbs), and a soft-start instruction ('Start with half the full serving. Skip a day if needed to adjust'). NASC Preferred Supplier status carries baseline species-appropriate safety expectations.Pregnancy / lactation exclusions and explicit veterinary-consult language not surfaced.Start with half the full serving. Skip a day if needed to adjust.Architecture is broad: 38 actives sorted into 8 named proprietary blends plus standalone ALA, organized by functional role (gut, antioxidant, joint, immune, cognition, organ, longevity, adaptogen). The role-grouping framework is intelligible.Role-by-role architecture is visible at the blend label, but per-ingredient role weight cannot be evaluated because dose is hidden inside 8 proprietary blends. A published per-ingredient formulation rationale would lift to tier 7+.63 premium, science-backed ingredients ... entourage effect, where 63 compounds and ingredients work synergistically to enhance overall efficacyClaim register includes 'increase lifespan' and 'slow your dog's aging' (Modern Dog Magazine sponsored placement) and a brand-announced clinical study in recruiting status.No published finished-formula peer-reviewed trial. Active claim register ('increase lifespan,' 'slow aging') sits at the aggressive edge of category-defensible language. Per-active scientific citations are not surfaced on the public PDP.Arterra Pet Science is announcing a new clinical study exclusively for senior dogs aged 8 years and olderPalatability rationale is explicitly disclosed: Filet Mignon flavor, with a third-party Summit Ridge palatability study cited at 87.5% (versus a stated industry benchmark of 95%). 5g chew format with '50% active ingredients' framed as a low-filler positioning.Detailed excipient enumeration absent. Palatability score (87.5%) is disclosed but the underlying flavor-system chemistry, binder, and humectant identity are not.50% active ingredients (5x more than the industry standard)Single daily soft-chew format with three weight bands (1-20 / 21-49 / 50+ lbs), a soft-start instruction ('start with half the full serving, skip a day if needed'), and tiered subscription pricing (30 / 60 / 120 chew packs at $1.00 / $0.83 / $0.58 per chew). Subscribe & Save offers 30% off the first order and up to 20% on subsequent orders.Chews-per-day count for each weight band is not enumerated on the public PDP captured. Storage instructions and chew shelf-life are not surfaced. A daily-routine illustration plus chew-count table would lift to tier 9-10.Start with half the full serving. Skip a day if needed to adjust.Last reviewed: May 20, 2026Sources: Product page · Label panel · Published documentation · Retailer listing21ARArterra Adult Longevity Multivitamin Soft ChewArterra Pet Science (Austin, TX) — manufactured at an FDA-registered cGMP facility in Florida · ChewArterra Adult Longevity Multivitamin is a very broad daily chew built to cover many wellness categories at once. It includes 39 ingredients across gut, joint, antioxidant, immun...NASC Quality SealMade In USALow-Dose ConcernDose Disclosure Limited52.4/100Disclosure Gaps
22Rank51.9/100Disclosure Gaps22RankL15SachetLongevity15 Powered by fatty15 — C15:0 Health Supplement for Dogs
Pet's Best Life (Kansas City, MO) — distributing partner under Seraphina Therapeutics' patented C15:0 (fatty15) ingredient. Made in the USA in cGMP-certified facilities. · Sachet
Longevity FormulaSachet51.9/100Disclosure GapsLongevity15 is a single-active C15:0 sachet built for simple daily use at mealtime. It uses FA15 pentadecanoic acid at greater than 99.5% purity, licensed from the fatty15 program, with pre-measured sachets across five dog weight bands. The catch: the brand does not publicly disclose the C15:0 milligrams per sachet or show a published canine trial on the finished product.
Best forOwners who want a simple sprinkle-on-food longevity sachet built around C15:0 rather than a multi-ingredient aging stack.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingDose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- A single active ingredient: FA15 pentadecanoic acid, also known as C15:0, at greater than 99.5% purity.
- Pre-measured daily sachets with five size bands, from extra-small dogs to dogs over 100 pounds.
- A short inactive list: Himalayan cheese, miscanthus grass, natural flavoring, and mixed tocopherols.
What's not in it
- No public milligram amount for C15:0 per sachet, which makes dose benchmarking difficult.
- No NASC Quality Seal, public COA, batch lookup tool, or named third-party testing lab surfaced for buyers.
- No multi-active longevity stack with NAD+ precursors, mitochondrial cofactors, cognitive actives, or joint-support ingredients.
Label snapshotSingle-active sachet · per-sachet mg NOT disclosedFA15 (Pentadecanoic Acid / C15:0) at >99.5% purity?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsSingle-active formula. Active ingredient identity is named explicitly: FA15 (Pentadecanoic Acid / C15:0) at >99.5% purity. Inactive ingredients are enumerated by identity (Himalayan cheese, miscanthus grass, natural flavoring, mixed tocopherols).Active C15:0 milligrams per sachet are not disclosed on any public surface.Active Ingredient: FA15 (Pentadecanoic Acid); Inactive Ingredients: Himalayan cheese, miscanthus grass, natural flavoring, Mixed tocopherols (preservative).Single-active formula relying on C15:0 (pentadecanoic acid) as the only meaningful longevity ingredient.Pathway claims hang off one ingredient. Adding distinct ingredient-to-pathway assignments (e.g., a separate NAD+ precursor, mitochondrial cofactor, cognitive active, or joint active) would lift toward tier 7-10.C15:0 has been shown to fight cell membrane oxidation, activate AMPK, inhibit mTOR, and target six hallmarks of aging.Brand asserts manufacturing in 'certified cGMP facilities' and a '>99.5% pure C15:0' purity claim. No specific third-party laboratory is named on the brand site, retail listings, or press releases examined. No public Certificate of Analysis program is surfaced. No lot-level batch lookup tool is provided to buyers. No NASC Quality Seal is referenced.Third-party lab not named, no public COA, no batch-lookup tool, no NASC seal. A named NSF/Eurofins-class lab plus a public per-lot COA would lift to tier 7-8.Manufactured in certified cGMP facilities with rigorously sourced ingredients.Five weight-banded SKUs (Extra Small 5.5-12 lbs, Small 13-25 lbs, Medium 26-50 lbs, Large 51-100 lbs, Extra Large 100+ lbs) with size-scaled sachets, giving species- and size-appropriate dosing rather than a one-size human-supplement transfer. Brand cites veterinary co-founder (Stephanie Venn-Watson, DVM, MPH) for the underlying C15:0 program and Dr.Pregnancy / lactation language and explicit veterinary-consult guidance are not surfaced on the public brand pages reviewed.Dogs in all stages of life can benefit from the help Longevity15 powered by fatty15 provides... from puppy to senior dog, Longevity15 is critical to your dog's long term health.Architecture is deliberately minimal: one active (C15:0) plus a carrier matrix (Himalayan cheese, miscanthus grass, natural flavoring, mixed tocopherols). The intentionality is real — the brand chose monotherapy on the strength of its single ingredient's mechanism map and the underlying fatty15 IP.Architecture is single-active by design.Longevity15 is a first-to-market innovation rooted in the award-winning, science-backed, and pure ingredient C15:0.The underlying C15:0 / fatty15 program has a substantial human and preclinical peer-reviewed evidence base — Pet Age cites 100+ peer-reviewed studies, Dog Dish cites 50+, and the ingredient has multiple Seraphina Therapeutics patents. However, the canine product Longevity15 itself has no published, finished-formula clinical trial in dogs at review.No finished-formula canine clinical trial published at review.C15:0 works by helping reverse key hallmarks of aging, reducing drivers of chronic disease, and producing a beneficial metabolite that supports whole-body health.Excipient list is fully enumerated and short: Himalayan cheese (carrier and palatability driver), miscanthus grass (insoluble fiber / flow agent), natural flavoring, mixed tocopherols (vitamin-E-based preservative).Himalayan cheese is a dairy carrier and a published lactose-sensitivity exclusion is absent.Inactive Ingredients: Himalayan cheese, miscanthus grass, natural flavoring, Mixed tocopherols (preservative).Daily-usability design is among the strongest in the competitor set. Pre-measured single-serve sachets (30 per box, one per day at mealtime) remove dosing-instrument friction entirely. Five weight bands let owners pick the right pack without splitting or combining doses. Sprinkle-on-food delivery sidesteps pill refusal and tablet-fighting.Subscription cadence (subscribe-and-save) and storage / shelf-life instructions are not explicitly surfaced on the brand site landing reviewed. Adding subscription with explicit cadence and storage guidance would lift to tier 10.Give one sachet at mealtime once a day.Last reviewed: May 20, 2026Sources: Product page · Archived snapshot · Regulatory filing · Retailer listing22L15Longevity15 Powered by fatty15 — C15:0 Health Supplement for DogsPet's Best Life (Kansas City, MO) — distributing partner under Seraphina Therapeutics' patented C15:0 (fatty15) ingredient. Made in the USA in cGMP-certified facilities. · Sachet · Core Longevity FormulaLongevity15 is a single-active C15:0 sachet built for simple daily use at mealtime. It uses FA15 pentadecanoic acid at greater than 99.5% purity, licensed from the fatty15 progr...Aging Biology FocusMade In USADose Disclosure LimitedNarrower Support Scope51.9/100Disclosure Gaps
23Rank41.5/100Sparse Public Evidence23RankVWSoft ChewVet Worthy Senior Multi-Vitamins Soft Chews
Vet Worthy · Soft Chew
Senior WellnessSoft ChewProprietary Blend41.5/100Sparse Public EvidenceVet Worthy Senior Multi-Vitamins is a simple senior soft chew positioned around daily vitamins, antioxidants, B vitamins, iron, and zinc. It may fit owners looking for a basic senior vitamin at retail. The catch: there is very little public detail behind the formula, including no visible active amounts.
Best forOwners who want a basic retail senior vitamin chew and are not using the label for detailed comparison.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingDose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- A senior multivitamin positioning for dogs over 7 years old.
- Liver-flavored soft-chew format.
- General maintenance claims around vitamins, antioxidants, B vitamins, iron, and zinc.
What's not in it
- Individual mg or IU amounts for the active ingredients.
- A public COA lookup, NASC seal, or named independent testing lab.
- A named veterinarian, formula rationale, or detailed inactive-ingredient panel.
Label snapshot · proprietaryMultivitamin · doses not publicly disclosed · soft chewNOT PUBLICLY DISCLOSED?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsVet Worthy does not show public per-active doses on the brand page. The page mentions ingredient categories such as B vitamins, iron, and zinc, but not the amounts.A public ingredient panel with per-chew amounts would raise the score.Daily vitamins and antioxidants · Rich in B vitamins, Iron, Zinc · Vet formulatedThis is a basic senior multivitamin with general antioxidant and nutrient-support framing. It does not show targeted NAD+, mitochondrial, senolytic, or cognitive actives at disclosed doses.Targeted aging-support ingredients with disclosed doses would raise the score.Recommended to support nutritional needs in dogs over (7) years of age. This veterinarian scientifically balanced formula is an enticing liver flavor your dog will love.No third-party testing language, lab name, COA lookup, or NASC seal was found on the brand page or fallback sources. There is no meaningful public testing proof.Any clear public testing claim would move this out of the lowest tier.The page states that the product is for dogs over 7 years old and positions it as dog-only. It does not show puppy, pregnancy, lactation, or condition-specific cautions.Sensitive-population and contraindication warnings would improve the safety profile.Recommended to support nutritional needs in dogs over (7) years of ageThe formula is described in broad nutritional terms: daily vitamins, antioxidants, B vitamins, iron, and zinc. It does not show ingredient-level doses or a deeper explanation of the blend.Dose disclosure and a published formula rationale would raise the score.veterinarian scientifically balanced formulaThe claims stay conservative, focusing on nutritional needs and a healthy body. The “vet formulated” language is not tied to a named veterinarian.A named DVM, peer-reviewed evidence, or a finished-formula study would strengthen the claims.support a healthy bodyOnly liver flavor was clearly surfaced as the palatability detail. The full inactive ingredient list was not publicly visible, so carriers and binders could not be properly reviewed.Publishing the complete inactive ingredient list would raise the score.an enticing liver flavor your dog will loveThe liver-flavored soft-chew format and low retail price make the product easy to try. Weight-banded dosing details were not visible on the rendered brand page.A clear dosing chart and subscription option would improve usability.an enticing liver flavor your dog will loveLast reviewed: May 19, 2026Sources: Retailer listing · Product page23VWVet Worthy Senior Multi-Vitamins Soft ChewsVet Worthy · Soft ChewVet Worthy Senior Multi-Vitamins is a simple senior soft chew positioned around daily vitamins, antioxidants, B vitamins, iron, and zinc. It may fit owners looking for a basic s...Dose Disclosure LimitedNarrower Support Scope41.5/100Sparse Public Evidence
24Rank33.4/100Sparse Public Evidence24RankDHPowderDr. Harvey's Golden Years Whole Food & Herb Geriatric Supplement for Senior Dogs
Dr. Harvey's · Powder
Botanical SupportPowderProprietary Blend33.4/100Sparse Public EvidenceDr. Harvey’s Golden Years is a whole-food and herb powder for senior dogs, with a long list of botanical ingredients. It will appeal to owners who like traditional herbal-style support and powder toppers. The catch: none of the individual botanical amounts are shown, and some of the marketing claims are stronger than the evidence we found.
Best forOwners who prefer old-school whole-food herbal powders and are comfortable with limited public dose detail.
Aging Biology Focus Every Dose DisclosedSystems ApproachClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWorth NotingDose Disclosure Limited
The product may use proprietary blends, incomplete active-by-active disclosure, or public labeling that does not clearly show the amount of each key ingredient.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
What's in it
- A 20-ingredient botanical and whole-food powder for senior dogs.
- Weight-based scoop dosing across four size ranges.
- Made in USA positioning from the brand.
What's not in it
- Per-ingredient amounts for the botanical blend.
- A public COA lookup, NASC seal, or named independent testing lab.
- Medication-interaction cautions for herbs like garlic, ginkgo, and licorice.
Label snapshot · proprietary20 botanical actives, no doses disclosedNOT PUBLICLY DISCLOSED?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsDr. Harvey's lists 20 herbs and whole-food ingredients, but does not disclose individual amounts. There is no supplement facts panel or scoop weight in grams, so dose strength cannot be assessed.Per-ingredient amounts, or at least an aggregate amount per scoop, would raise the score.Alfalfa, Kelp, Flaxseed, Brewer's Yeast, Lecithin Granules, Spirulina, Garlic, Rose Hips, Fo-Ti Root, Bilberry Leaf, Ginkgo Biloba Leaf, Ginger Root, Licorice Root, Nettle Leaf, Rosemary Leaf, Burdock Root, Red Clover, Suma, Yellowdock Root, CalendulaThe formula uses broad senior vitality language and includes herbs that may relate to antioxidant, immune, circulatory, or cognitive support. Without doses or clear mechanism mapping, it reads as a general herbal blend rather than a targeted longevity formula.Published ingredient-to-pathway mapping and disclosed doses would be needed to verify coverage.Golden Years can help to give your senior a bit of 'pep in his step'No third-party testing language, lab name, COA lookup, or NASC seal was found on the retailer listing or brand homepage. Public testing proof is absent.A named third-party lab and public COA surface would raise the score.The product gives weight-banded scoop dosing, which is useful. The safety concerns are meaningful: no clear age floor beyond senior, no pregnancy or lactation warning, no vet-consult language, and garlic is listed without caution.Medication-interaction warnings, pregnancy/lactation guidance, and a vet-consult prompt would improve the safety score.2-20 lbs: 1 scoop daily; 21-50 lbs: 2 scoops daily; 51-95 lbs: 3 scoops daily; 96-150 lbs: 4 scoops dailyThe 20 botanicals and whole foods are presented as one long list. There is no grouping by role, no disclosed doses, and no deeper rationale connecting the ingredients to aging support.Grouping ingredients by role and publishing a formula rationale would improve the score.Alfalfa, Kelp, Flaxseed, Brewer's Yeast, Lecithin Granules, Spirulina, Garlic, Rose Hips, Fo-Ti Root, Bilberry Leaf, Ginkgo Biloba Leaf, Ginger Root, Licorice Root, Nettle Leaf, Rosemary Leaf, Burdock Root, Red Clover, Suma, Yellowdock Root, CalendulaThis is the weakest claim profile in the set. The headline connects disease-fighting and longevity language without visible clinical evidence.Removing “increase longevity” and “fight disease” language, or supporting it with real evidence, would be necessary to raise the score.helps the body maintain its ability to fight disease and may increase longevityThe powder appears to use whole foods and herbs without obvious chew carriers, glycerin, sweeteners, or problematic excipients. The full supporting-ingredient panel is not separately disclosed.A complete other-ingredients panel and clearer explanation of garlic safety would improve the review.Alfalfa, Kelp, Flaxseed, Brewer's Yeast, Lecithin Granules, Spirulina, Garlic, Rose Hips, Fo-Ti Root, Bilberry Leaf, Ginkgo Biloba Leaf, Ginger Root, Licorice Root, Nettle Leaf, Rosemary Leaf, Burdock Root, Red Clover, Suma, Yellowdock Root, CalendulaThe four weight-based scoop ranges are easy to understand, and subscription savings are available through the retailer. Daily mixing is still more work than a chew.A documented palatability system and cleaner compliance-safe positioning would improve the usability story.2-20 lbs: 1 scoop daily; 21-50 lbs: 2 scoops daily; 51-95 lbs: 3 scoops daily; 96-150 lbs: 4 scoops dailyLast reviewed: May 19, 2026Sources: Retailer listing · Manufacturing page24DHDr. Harvey's Golden Years Whole Food & Herb Geriatric Supplement for Senior DogsDr. Harvey's · PowderDr. Harvey’s Golden Years is a whole-food and herb powder for senior dogs, with a long list of botanical ingredients. It will appeal to owners who like traditional herbal-style ...Made In USADose Disclosure LimitedNarrower Support Scope33.4/100Sparse Public Evidence
How we scored 25 dog longevity supplements.
About this ranking.
Each product was scored against the same eight criteria: dose disclosure, longevity-pathway coverage, batch testing, species-appropriate safety, formulation logic, claim discipline, ingredient and flavor quality, and daily usability. We used public product pages, label panels, testing pages, COA pages, retailer listings, and public documentation available when this page was reviewed.
Not every senior dog supplement is built for longevity. Some mainly support visible senior needs such as joints, coat, digestion, energy, or cognition. A smaller group is built around the biological systems that change with age — NAD+ metabolism, mitochondrial function, oxidative stress defense, immune balance, and cellular resilience. We mark those products with the Aging Biology Focus badge.
La Petite Labs makes Hollywood Elixir, which is shown as a separate publisher benchmark and excluded from the numbered competitive ranking. This page is a La Petite Labs scoring analysis, not independent third-party certification.
The score in 30 seconds.
Each criterion has a fixed weight. Each product earns a tier score for that criterion, and the weighted scores are added into a total out of 100. The same formula is applied to every product, using only public evidence available at the time of review.
What this ranking does not do
- Diagnose, treat, cure, or prevent disease.
- Certify or accredit any product.
- Replace veterinary advice.
- Assume anything beyond what brands disclose publicly.
What it does do
- Scores every product against the same eight criteria, then removes the publisher product from the numbered competitive ranking.
- Uses only public materials: brand pages, label panels, testing pages, COAs, retailer listings, and public documentation.
- Stays open to correction: brands may request review if public documentation was missed or has changed.
Update Policy
Annual major update. Quarterly correction window.
This ranking is reviewed on an annual major-update cycle, with limited correction windows for material changes. If a brand materially updates its label, dosing disclosure, COA access, product formulation, or public substantiation before the next annual update, La Petite Labs may issue a correction note without changing the full category methodology.
Brand Correction Policy
Bring evidence. We’ll review.
Scores are based on publicly available information at the time of review. If a brand has updated label, formula, COA, or substantiation materials, it may submit those materials for review. Corrections are evaluated under the same rubric used for every product.
View the Evidence Dataset
The complete scoring run, as machine-readable JSON.
The public dataset includes the scoring rubric, criterion definitions, product-level evidence, source quotes, and reasoning used for this ranking. Published for transparency review.
longevity-scoring-dataset-2026.jsonReviewed25
Ranked24
Criteria8
Evidence sources71
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Frequently Asked Questions
How were the dog longevity supplements scored?
Each product was scored under a published 100-point rubric across eight criteria, including aging-biology relevance, formulation breadth, dose disclosure, quality verification, public substantiation, species appropriateness, usability, and transparency.
Does La Petite Labs make a product shown on this page?
Yes. La Petite Labs publishes this report and makes Hollywood Elixir. To avoid ranking its own product against competitors, Hollywood Elixir is scored under the same rubric but shown separately as a publisher benchmark rather than included in the numbered ranking.
How did Hollywood Elixir score?
Hollywood Elixir scored 93.2/100 under this rubric. Its strengths and limitations are shown in the publisher spotlight, including the main roadmap item: more finished-formula evidence on Hollywood Elixir itself.
Why is Hollywood Elixir excluded from the numbered ranking?
Because La Petite Labs is the publisher. Keeping the publisher product outside the competitive list makes the ranking easier to trust while still letting readers inspect how it performs under the same rubric.
Does a lower score mean a product is bad?
No. A lower score may mean the product is narrower in scope, less focused on aging biology, less dose-transparent, or supported by fewer public quality signals. Some lower-scoring products may still be useful for specific needs.
What does Aging Biology Focus mean?
Aging Biology Focus means the product is positioned around mechanisms relevant to healthy aging, such as NAD+ metabolism, mitochondrial support, oxidative stress, immune balance, cellular resilience, or multi-system longevity support.
What does Dose Disclosure Limited mean?
Dose Disclosure Limited means the product does not clearly disclose the amount of each key active ingredient, may use proprietary blends, or otherwise makes active-by-active evaluation difficult from public label information.
How often is this ranking updated?
La Petite Labs performs a full annual rescore, with limited correction windows for material changes such as updated labels, formula changes, new COA access, or new public substantiation.
