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Choose Your SystemWe scored 21 cat 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. Full category review May 21, 2026; product records updated through Sep 3, 2026.
The cat longevity field is still sparse. Many products are senior multivitamins, immune adjuncts, or heart/cognition products rather than integrated aging-biology formulas. Finished-formula cat trials are rare, so public label clarity, species logic, and restraint in claims matter more than usual.
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.
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 — and it is formulated for both cats and dogs under weight-banded dosing rather than a one-species transfer.
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VetriScience Laboratories (a FoodScience LLC brand) · Capsule
VetriScience Cardio-Strength is a capsule for cats and dogs built around heart and cellular-energy nutrients, not a generic senior multivitamin. It clearly lists taurine, L-carnitine, CoQ10, DMG, EPA, GLA, vitamin E, folic acid, and mineral cofactors on the label. The catch: it is still a capsule, so many cat owners will need to open it into food, and there is no public batch-level COA lookup.
Best forOwners who want heart and mitochondrial-support nutrients for a cat and can handle capsule dosing.
Life Extension (Fort Lauderdale, FL) · Powder
Life Extension Cat Mix is a broad cat-only daily nutrient powder with taurine and a visible supplement panel. It combines vitamins, minerals, amino acids, taurine, and a botanical layer in a 100 g powder format. The catch: it is still a single broad nutrient mix, not a role-separated all-in-one system.
Best forOwners who want a cat-only daily powder from an established supplement brand and care more about foundational nutrient coverage than full stack replacement.
Rx Vitamins for Pets (a Swedencare AB brand since 2021) · Capsule
Rx Vitamins Formula CV is a veterinary-channel capsule centered on heart and circulation support for dogs and cats. It discloses nine active ingredients, including hawthorn, L-carnitine, taurine, vitamin E, DMG, magnesium, potassium, coleus, and selenium. The catch: cats get a half-capsule serving, which means opening and splitting powder every day.
Best forOwners who want a veterinarian-channel cardiovascular supplement and are willing to manage half-capsule dosing for a cat.
VetriScience Laboratories (a FoodScience LLC brand) · Soft chew
VetriScience Nu Cat Senior 27+ is a cat-specific senior multivitamin soft chew, not a deep longevity formula. Its strength is practical: one daily chew with many vitamins, minerals, taurine, lysine, choline, EPA, DHA, and other senior-cat nutrients listed on the label. The catch: it does not include the bigger longevity ingredients buyers may expect, like NAD+ support, CoQ10, or dedicated cognitive actives.
Best forOwners who want a cat-specific senior multivitamin chew from a familiar veterinary supplement brand.
Fera Pets, Inc. (Glendale, CA) · Powder
Fera Pets Wellness Blend for Cats is one of the more practical all-in-one cat powders in the set. It gives clear doses for lysine, taurine, green-lipped mussel, cranberry, algal DHA, FOS, and probiotics, and it also offers public lot-level COA access. The catch: it is a whole-cat wellness powder, not a dedicated longevity formula built around NAD+, mitochondria, or cellular aging.
Best forOwners who want a cat-specific daily wellness powder with clear doses, taurine, probiotics, and public batch testing.
Pet Wellbeing (Vancouver, BC) · Liquid
Pet Wellbeing Old Friend is a liquid herbal supplement for senior cats, aimed at immune, joint, and general vitality support. It uses eight named herbs and gives cat weight-band dosing, with unusually detailed safety cautions for medications and sensitive situations. The catch: the herbs are grouped into one total amount, so buyers cannot see how much of each herb their cat actually gets.
Best forOwners who prefer herbal senior-cat support and are comfortable giving a liquid by dropper twice daily.
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.
VetriScience Laboratories (a FoodScience, LLC brand) — Williston, Vermont. Made in the USA in an SQF-certified facility operating under FDA cGMP guidance. · Capsule
VetriScience Coenzyme Q10 is a simple, low-cost capsule built around one clear active: CoQ10. That makes it easy to understand if your main interest is mitochondrial or heart-support nutrition for a cat. The catch: it is a single-ingredient product, so it does not offer broad healthy-aging support on its own.
Best forOwners who specifically want a simple CoQ10 capsule for a cat and do not need a broad multi-active formula.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
Pet Wellbeing · Powder
Pet Wellbeing CORE IMMUNE CARE is a cat powder focused on antioxidant and immune support. It names ingredients like glutathione, vitamin E, beta-carotene, quercetin, selenium, beta-glucans, and fish collagen, which makes the direction of the formula easy to understand. The catch: the product does not show individual ingredient amounts, so buyers cannot judge the dose behind the claims.
Best forOwners who want an antioxidant and immune-support powder for a cat and are comfortable with limited dose detail.
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.
NaturVet (a Garmon Corp brand; subsidiary of Swedencare AB) · Soft chew
NaturVet VitaPet Senior Daily Vitamins is a senior-cat soft chew for basic daily vitamin and mineral support. It clearly lists many nutrients, including calcium, phosphorus, vitamins, minerals, glucosamine, and inositol. The catch: it is a senior multivitamin, not a true longevity formula, and many cats may still resist the chew format.
Best forOwners who want a mainstream senior-cat multivitamin chew with clear label amounts and NASC-backed manufacturing.
NHV Old Timer is an alcohol-free liquid herbal supplement for senior cats. It combines six herbs for joint comfort, immune support, and vitality, and the glycerin-water carrier is a sensible choice for cats. The catch: all six herbs are grouped under one total dry-herb amount, so individual doses are not visible.
Best forOwners who want a traditional herbal liquid for a senior cat and are comfortable dosing by dropper twice daily.
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.
Standard Process Inc. (Palmyra, WI) · Tablet
Standard Process Feline Whole Body Support is a veterinary-channel multisystem tablet with a long whole-food formulation heritage. It combines whole-food micronutrient sources, organ and tissue extracts, and botanicals under clinician-directed use. The catch: it lacks public per-ingredient dose disclosure and uses a tablet format that many cats resist.
Best forOwners working with a veterinarian who want a professional-channel whole-food cat supplement rather than a consumer powder or mousse.
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.
Huggibles · Liquid topper
Huggibles Tasty Toppers Senior Vitality Blend is a liquid food topper for dogs and cats with a broad healthy-aging ingredient list. It includes CoQ10, glutathione, MSM, resveratrol, quercetin, turmeric, ginger, spirulina, bromelain, salmon oil, probiotics, and B vitamins. The catch: the product does not disclose per-serving amounts for those actives, and the one-pump-per-20-lb dosing does not translate neatly to the average cat.
Best forOwners who want a salmon-oil-based liquid topper and care more about feeding ease than exact dose transparency.
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.
NHV Natural Pet Products (Vancouver, BC) · Liquid
NHV Natures Immuno is a cat liquid built around five medicinal mushrooms. It is relevant to senior-cat wellness because immune balance and antioxidant support matter with age. The catch: the mushrooms are grouped into one total amount, and the product leans heavily into immune and cancer-adjacent language rather than broad longevity support.
Best forOwners who want a mushroom-based liquid for immune support and are comfortable with limited dose detail.
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.
Pet Wellbeing (Boulder, CO) · Liquid
Pet Wellbeing Life Gold is an herbal liquid for cats centered on immune, antioxidant, and detoxification support. It uses six herbs in an alcohol-free bacon-flavored glycerin liquid and carries NASC-backed brand quality signals. The catch: the formula is tied to cancer-adjacent positioning on several public surfaces, while the product does not disclose individual herb amounts or show a finished-formula feline clinical trial.
Best forOwners who are specifically looking for herbal immune-support drops and will discuss cancer-adjacent use with their veterinarian.
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.
Pet-Ag, Inc. (Hampshire, IL) · Powder
PetAg KMR Healthy Aging is a milk-based powder for adult and senior cats 7+. It is positioned around senior nutrition, heart and muscle support, joints, immunity, and skin and coat, with taurine and omega sources included. The catch: it does not show per-serving amounts for the key actives, and the ingredient list feels more like a fortified nutrition powder than a modern longevity supplement.
Best forOwners who want a senior-cat nutritional powder from a long-established animal nutrition company.
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.
Advantage Biosciences (Costa Mesa, CA) · Capsule
Resvantage Feline is a cat-specific capsule built around resveratrol, a well-known healthy-aging polyphenol. It clearly lists resveratrol 3 mg, kelp 50 mg, flaxseed oil 100 mg, lecithin 50 mg, and taurine 50 mg per capsule. The catch: it is still a narrow resveratrol-led formula, and the capsule format can be awkward for cats.
Best forOwners who specifically want a feline resveratrol supplement and care about seeing the active amounts.
Narrower Support Scope
The product appears focused on a specific wellness area rather than broad aging-biology coverage across multiple longevity-relevant systems.
PetAlive — a brand of Native Remedies, distributed by Silver Star Brands, Inc. (Oshkosh, Wisconsin). Brand claims manufacturing in FDA-registered, cGMP-compliant facilities in the USA. · Liquid
PetAlive Brain Health for Senior Cats is a liquid drop formula focused on cognitive aging. It uses five certified-organic botanicals in an alcohol-free glycerin and water base, with dosing designed for wet food. The catch: it does not disclose per-botanical amounts, and it is a narrow brain-support product rather than a broad longevity formula.
Best forOwners who want a simple herbal liquid for senior-cat brain support and prefer drops over pills.
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.
NHV Natural Pet Products (Vancouver, BC) · Liquid
NHV Multi Essentials is an herbal liquid multivitamin for cats, aimed at daily vitality and filling diet gaps. It uses 11 herbs in a clean glycerin-and-water base and keeps the claims fairly restrained. The catch: the herbs are grouped into one total amount, so buyers cannot see how much of each ingredient their cat actually receives.
Best forOwners who want a gentle herbal liquid multivitamin and are comfortable with twice-daily dropper dosing.
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.
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 cat 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. Hollywood Elixir is formulated for both cats and dogs under weight-banded dosing. This page is a La Petite Labs scoring analysis, not independent third-party certification.
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.
Inclusion rules: products enter this ranking when they are marketed to the category with public US availability and a retrievable label or supplement-facts panel; single-purpose formulas positioned outside the category are evaluated but excluded from the numbered ranking, and discontinued, renamed, or rebranded records are retained as explicit exclusions in the underlying dataset rather than silently dropped or counted twice.
Next scheduled full review: Q1 2027. Product labels, formulas, COA access, and public disclosures may change between review cycles. The later update date reflects targeted product additions or material corrections, not a claim that every existing product was re-reviewed.
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.
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.
The public dataset includes the scoring rubric, criterion definitions, product-level evidence, source quotes, and reasoning used for this ranking. Published for transparency review.
cat-longevity-scoring-dataset-2026.jsonEach 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.
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.
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 in cats, where category-wide clinical data remains especially sparse.
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.
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.
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.
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.
Finished-formula clinical trials in cats are uncommon across the entire pet supplement industry. Most ingredient-level research cited by brands was conducted in humans, mice, dolphins, or dogs. La Petite Labs notes this gap, scores brands against the same standard regardless of species, and avoids assuming that ingredient-level evidence from one species translates one-to-one to cats.
