Review Schedule
Last reviewed May 21, 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 Skin & Coat
Best Cat Skin & Coat Supplements 2026
We scored 13 cat skin and coat supplements against the same eight criteria: dose disclosure, integumentary system coverage, barrier lipid and hydration architecture, dermal matrix and collagen support, keratin and nail nutrient logic, batch testing, claim discipline, and daily usability. Public evidence only. Pet Gala is scored separately as the publisher benchmark and is not counted in the numbered ranking below. Last reviewed May 21, 2026.
2026 Market Executive Summary
Cat skin and coat supplements remain thin once feline-specific fit is required.
The category is still dominated by omega oils, hairball-adjacent products, and dog-first formats. Cat-specific strength came from marine lipid logic, palatable delivery, clean dosing, and explicit feline safety thinking. A product can be decent for coat shine and still fall short as a full skin-barrier system.
- If you want visible coat change, not just shine: look for structure, barrier lipids, hydration, and keratin support working together.
- If your pet is flaky, dull-coated, or uncomfortable: use this list to separate broad beauty systems from narrower itch, oil, or treat-format products.
- How to read our placement: Pet Gala 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 products in this category use the words “skin and coat” but are structurally much narrower than buyers expect. The visible shelf is crowded with omega-only fish oils, biotin chews, and allergy or itch chews dressed up in skin and coat marketing. Only a smaller group is built across several parts of skin and coat biology; we mark them with the Integumentary Biology Focus badge.
- 02Full dose disclosure was uncommon. Many products listed impressive ingredient groups but did not show the individual milligram amount of each meaningful active. That gap lowers the score.
- 03Finished-formula clinical evidence was rare. Most products relied on ingredient-level rationale, general “shiny coat” positioning, or brand trust rather than a published trial on the exact formula sold.
- 04Fish oils matter for coat health, but they are one lane out of four. Products that lean only on omega-3 and biotin scored lower on integumentary system coverage because they do not address structural, hydration, or keratin biology.
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 Pet Gala.
Integumentary Biology Focus
The product is built around integumentary biology — structural dermal matrix, barrier lipids and hydration, keratin and follicle nutrition, plus skin barrier resilience, immune comfort, and coat-cycle support — rather than only visible coat appearance or a single ingredient class.
Every Dose Disclosed
You can see how much of each meaningful active ingredient your cat gets per serving. A long ingredient list means less if the amounts are hidden, blended together, or too small to judge.
Systems Approach
The formula covers multiple integumentary lanes — structural, barrier lipids and hydration, keratin and follicle — with meaningful actives in each lane.
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 skin and coat system 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 single lane — usually omega-3 oil or biotin — rather than covering structural support, barrier lipids, hydration, and keratin biology across the full skin & coat system.
Higher scores reward
Breadth, disclosure, and substantiation.
- Coverage of multiple skin and coat lanes (structural, barrier lipids and hydration, keratin) 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 lane (omega oil, biotin alone) rather than multi-lane skin and coat 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.
Pet Gala is shown separately because La Petite Labs publishes this report. Under the same rubric, it scores strongly because it combines disclosed marine collagen peptides, omega 3-6-9, omega 7, ceramides, hyaluronic acid, biotin, zinc, silica, MSM, and L-carnitine in one daily formula — covering structural support, barrier lipids, hydration, and keratin biology under one disclosed framework. It is formulated for both dogs and cats with serving guidance by body weight.
Room for improvement / roadmap
- Publish finished-formula skin and coat evidence on Pet Gala itself, not only ingredient-level rationale.
- Add more species-specific palatability and long-term compliance documentation for cats and dogs.
- Keep improving batch-level testing visibility so shoppers can verify the exact product they receive.
94.2/100
Publisher benchmark · excluded from ranking
No products match
Try a brand name, manufacturer, or partial term — or .
1Rank73/100Solid With Gaps1RankUELiquid oilRx Vitamins Ultra EFA Liquid Skin & Coat Supplement for Dogs & Cats
Rx Vitamins for Pets (a Swedencare AB brand since 2021) · Liquid oil
Beauty SystemLiquid oil73/100Solid With GapsRx Vitamins Ultra EFA is one of the strongest liquid omega products here because it gives cats meaningful marine EPA and DHA in a dose-disclosed oil. Per teaspoon, the label shows EPA 540 mg, DHA 360 mg, lecithin 300 mg, zinc gluconate 2.3 mg, biotin 23 mcg, and vitamin E 45 IU. The catch: it is still mainly an oil, so there is no collagen, hyaluronic acid, ceramide, or structural skin-support lane.
Best forOwners who want a veterinarian-channel liquid oil with clear EPA and DHA amounts for skin and coat lipid support.
Integumentary Biology Focus Every Dose DisclosedClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWhat's in it
- Marine lipid concentrate 3,000 mg per teaspoon, supplying EPA 540 mg and DHA 360 mg.
- Lecithin, zinc gluconate, biotin, vitamin E, and rosemary extract with per-teaspoon amounts disclosed.
- A liquid format for dogs and cats from a veterinary-channel brand with NASC involvement.
What's not in it
- Collagen, gelatin, hydrolyzed protein, hyaluronic acid, or ceramides.
- A public lot-level COA or batch lookup tied to the bottle.
- A low-friction chew format for cats that resist oils mixed into food.
Label snapshot8 actives · EPA 540 mg + DHA 360 mg per tsp · multi-laneMarine lipid concentrate (EPA + DHA), sunflower lecithin, zinc gluconate, biotin, vitamin E (tocopherol acetate), rosemary extract?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsEvery active in Ultra EFA is disclosed with a specific milligram, microgram, or IU value per teaspoon. No proprietary blends, no grouped totals, no hidden actives.Reconciling the 300 mg vs 1,265 mg lecithin spec across retailer listings with an explicit revision history, correcting the biotin mg/mcg typo on practitioner-channel pages, and publishing the supplement-facts panel directly on the brand…Marine Lipid Concentrate 3000 mg, Eicosapentaenoic Acid (EPA) 540 mg, Docosahexaenoic Acid (DHA) 360 mg, Lecithin (from sunflower) 300 mg, Zinc Gluconate 2.3 mg, Rosemary Extract 2.3 mg, Biotin 23 mcg, Vitamin E (tocopherol acetate) 45 IU.Ultra EFA covers several integumentary domains in one bottle. The EPA / DHA marine lipid backbone supports skin barrier lipid composition and coat fiber quality. Lecithin contributes phospholipids relevant to skin barrier and cell membranes. Zinc gluconate and biotin are keratin and nail nutrient cofactors.Adding hyaluronic acid for hydration, a disclosed collagen or gelatin source for dermal matrix, or ceramides for explicit barrier reconstruction would lift toward 9-10.Essential fatty acids may promote healthy skin and coat, metabolism of fats, eye and heart health, reduce inflammation, and support joints and bone strength.Barrier lipid logic is the strongest lane in this formula. EPA 540 mg and DHA 360 mg per teaspoon is a substantive marine omega-3 dose that supports skin barrier lipid composition and coat fiber lipid integrity.Adding a disclosed hyaluronic acid dose, a ceramide source, or an explicit humectant for the hydration dimension would lift toward 9-10. The lipid side is strong; the hydration side is absent.Marine lipids are rich in the Omega 3 fatty acids EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). Rosemary and vitamin E effectively prevent lipid peroxidation of the delicate fatty acids.Dermal matrix support is the weakest lane in this formula. Ultra EFA contains no collagen peptides, no gelatin, no hydrolyzed protein, no disclosed amino acids, and no explicit dermal matrix nutrients. The structural protein layer of the integumentary system is not addressed.Adding hydrolyzed collagen peptides, marine collagen, gelatin, or disclosed amino acids at meaningful doses would lift this lane. As-is, the formula is an omega-led liquid without dermal matrix architecture.Marine Lipid Concentrate 3000 mg, Eicosapentaenoic Acid (EPA) 540 mg, Docosahexaenoic Acid (DHA) 360 mg, Lecithin (from sunflower) 300 mg, Zinc Gluconate 2.3 mg, Rosemary Extract 2.3 mg, Biotin 23 mcg, Vitamin E (tocopherol acetate) 45 IU.Keratin and nail nutrient logic is present and disclosed. Biotin 23 mcg per teaspoon supports normal keratin formation. Zinc gluconate 2.3 mg per teaspoon contributes to keratinization, skin renewal, and nail strength. Both are disclosed at specific doses with named forms. That is two of the canonical keratin and nail cofactors disclosed in a single liquid.Adding silica, MSM, or a disclosed sulfur amino acid (cysteine or methionine) at meaningful doses, plus a follicle-specific nutrient or extract, would lift toward 9-10. The two cofactors present are real but the cluster is partial.Zinc Gluconate 2.3 mg, Biotin 23 mcg.Rx Vitamins is a National Animal Supplement Council (NASC) primary supplier and a founding NASC member per Swedencare's acquisition disclosure. NASC membership requires passing an independent third-party facility audit, ongoing compliance with quality control standards, adverse event reporting, labeling guidelines, and random product testing.Public lot-level COA, an IFOS or named third-party lab on the marine lipid raw material, disclosed TOTOX oxidation values, and a buyer-accessible batch-lookup tool would lift toward 9-10.Rx Vitamins has passed a rigorous independent audit of their facilities, earning them permission to display the Quality Seal, which demonstrates their commitment to the highest standards of quality in the industry.Claim register is restrained for a category that often overreaches. Headline language frames Ultra EFA as supporting healthy skin and coat, fat metabolism, eye and heart health, and joint and bone strength using structure-function phrasing rather than disease, cure, or treatment claims. The standard FDA disclaimer is surfaced on retailer listings.Publishing a finished-formula case series or peer-reviewed trial in cats on Ultra EFA, plus tightening Amazon and aggregator-listing claim language to match the brand-channel discipline, would lift to 10.Essential fatty acids may promote healthy skin and coat, metabolism of fats, eye and heart health, reduce inflammation, and support joints and bone strength.Liquid oil format with a per-15 lbs dose chart fits a cat's daily routine reasonably well. For a 10-lb cat, the dose works out to roughly 1/6 teaspoon twice daily, which can be drizzled onto wet or dry food. The format avoids the half-capsule splitting friction that hard-capsule cat products impose. Refrigeration after opening is recommended per practitioner-channel guidance.Adding a feline palatability matrix (flavor coating, salmon-flavored variant, or a documented sprinkle-into-food protocol), publishing a small-cat sub-teaspoon dose chart, and surfacing autoship cadence on the brand PDP would lift toward…Give 1/4 teaspoonful for each 15 lbs of body weight twice daily.Last reviewed: May 21, 2026Sources: Product page · Retailer listing · Regulatory filing1UERx Vitamins Ultra EFA Liquid Skin & Coat Supplement for Dogs & CatsRx Vitamins for Pets (a Swedencare AB brand since 2021) · Liquid oil · Core Beauty SystemRx Vitamins Ultra EFA is one of the strongest liquid omega products here because it gives cats meaningful marine EPA and DHA in a dose-disclosed oil. Per teaspoon, the label sho...Integumentary Biology FocusNASC Quality SealEvery Dose Disclosed73/100Solid With Gaps
2Rank71/100Solid With Gaps2RankFPTopperFera Pets Skin + Coat Goat Milk Topper
Fera Pets, Inc. (Glendale, CA) · Topper
Related BenchmarkTopper71/100Solid With GapsFera Skin + Coat Goat Milk Topper is a strong structural topper because it gives a full gram of bovine collagen peptides per teaspoon. It also includes goat milk powder, flaxseed oil powder, vitamin C 30 mg, and biotin 15 mcg, with NASC support and public lot-level COA access. The catch: it is a caloric food topper rather than a classic supplement, and its omega lane is plant-led rather than marine EPA/DHA-led for cats.
Best forOwners who want a food topper with collagen support and public COA access, especially for cats that accept powders mixed into meals.
Integumentary Biology Focus Every Dose DisclosedClean FormulaPublic Lab AccessLot-Specific ResultsNASC Quality Seal Clinical Evidence Published Made In USAWhat's in it
- Bovine collagen peptides 1,000 mg per teaspoon, plus goat milk powder, vitamin C, flaxseed oil powder, and biotin.
- NASC Quality Seal support, USA manufacturing, and a public per-lot COA lookup.
- A goat-milk topper format that can be mixed into food rather than given as a pill or chew.
What's not in it
- Marine EPA or DHA as the main omega source.
- Hyaluronic acid, ceramides, zinc, silica, or MSM.
- A cat-specific sub-teaspoon serving system for smaller cats.
Label snapshot5 disclosed actives · collagen-led food topper · gram-dosedGoat Milk Full Cream Powder 25.5 g + Bovine Collagen Peptides 1,000 mg + Flaxseed Oil Powder 50 mg + Vitamin C 30 mg + Biotin 15 mcg per teaspoon?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsActive-ingredient disclosure is unusually complete for a goat-milk meal topper. The brand PDP states each meaningful active and its per-teaspoon amount on a single visible panel: Goat Milk Full Cream Powder 25.5 g, Bovine Collagen Peptides 1,000 mg, Flax Seed Oil Powder 50 mg, Vitamin C (Ascorbic Acid) 30 mg, and Biotin 15 mcg.Naturally occurring micronutrients inside the goat-milk fraction (calcium, fat, naturally occurring B-vitamins) are not separately broken out in milligrams, and the omega-3 disclosure stops at ALA without enumerating EPA or DHA.Goat Milk Full Cream Powder 25.5 g · Bovine Collagen Peptides 1,000 mg · Flax Seed Oil Powder 50 mg · Vitamin C (Ascorbic Acid) 30 mg · Biotin 15 mcgThe topper maps to three to four integumentary lanes through a smaller active count than a multi-ingredient chew. Bovine collagen peptides at 1,000 mg per teaspoon cover the dermal-matrix structural lane, and the goat-milk casein and whey fraction within the 25.5 g carrier adds a secondary protein and amino-acid contribution.No hyaluronic acid or ceramide for hydration, no zinc for keratin co-factor support, no marine EPA / DHA to complement the plant-derived ALA. Adding a hydration active and a marine omega lane would lift from tier 7 toward tier 9-10.Promotes collagen synthesis and keratin production. Helps soothe skin related issues.Barrier-lipid logic rests on two lipid sources: flax seed oil powder at 50 mg per teaspoon and the goat-milk fat fraction inside the 25.5 g carrier (the guaranteed analysis registers 26% crude fat minimum, the highest fat density in the cat-skin-coat competitor set on a per-serving basis).No hyaluronic acid, ceramide, or named humectant. No marine EPA / DHA. Cats convert ALA to EPA / DHA inefficiently, so the plant-led omega architecture is less direct for feline barrier-lipid support.Linoleic Acid (Min.) 0.05% · Alpha Linolenic Acid (Min.) 0.16% · Flax Seed Oil Complex (Omega 3) 50 mg.Dermal-matrix architecture is the strongest layer of this topper, and it is rare in the cat-skin-coat competitor set.Collagen peptide molecular weight or dalton range is not disclosed, no marine collagen or type-II joint-specific collagen, and no free amino-acid lane for cysteine, methionine, or lysine.Bovine Collagen Peptides 1,000 mg · Crude Protein (Min.) 21%. Promotes collagen synthesis and keratin production.Keratin logic rests on two nutrients at disclosed doses: biotin at 15 mcg per teaspoon and vitamin C at 30 mg per teaspoon, the latter functioning as a collagen and keratin synthesis cofactor.Biotin at 15 mcg per teaspoon is light, no zinc disclosure, no silica, no MSM or sulfur donor, and claws or nails are not named in the marketed outcome.Biotin 15 mcg · Vitamin C (Ascorbic Acid) 30 mg.Testing infrastructure is buyer-accessible and independently verified. Fera Pets carries the NASC Quality Seal on the SKU PDP, holds active primary-supplier status in the public NASC directory, and operates a brand-wide per-lot Certificate of Analysis lookup tool that lets buyers enter a lot code from the pouch and retrieve a third-party batch result for purity and potency.Specific contract laboratory not named on any public surface; per-lot COA scope (which assays are run per batch) not enumerated in plain language.Each batch is tested by a 3rd party lab to ensure potency and purity.Claim discipline is generally responsible across surfaces and stays inside structure / function language.No finished-formula clinical trial on the Skin + Coat Goat Milk Topper; ingredient-level literature is not linked on the PDP; the 'soothe' verb borders on therapeutic register and could be tightened.Supports skin and coat health. Helps soothe skin related issues. Promotes collagen synthesis and keratin production.Daily-use design has real strengths and real friction. Format is a powder topper sprinkled onto food, which sidesteps pill refusal entirely — an advantage for cats, who resist tablet compliance. The goat-milk carrier is high-acceptance for picky eaters; the brand markets the topper explicitly 'for picky eaters' and the Amazon title leans on that positioning.Weight-banded dog-first dosing math, caloric load on a feline daily budget, no kitten ramp-up, palatability variance, and no allergen-callout for beef or dairy sensitivities.Feed 1 teaspoon per 25 lb body weight. Sprinkle onto your pet's food as a delicious and nutritious topper.Last reviewed: May 21, 2026Sources: Product page · Regulatory filing · Retailer listing2FPFera Pets Skin + Coat Goat Milk TopperFera Pets, Inc. (Glendale, CA) · TopperFera Skin + Coat Goat Milk Topper is a strong structural topper because it gives a full gram of bovine collagen peptides per teaspoon. It also includes goat milk powder, flaxsee...Lot-Specific ResultsNASC Quality SealEvery Dose Disclosed71/100Solid With Gaps
3Rank69.4/100Disclosure Gaps3RankICSoft ChewInClover Sleek Skin & Coat Chews for Cats
InClover Research (Boulder, CO) · Soft Chew
Beauty SystemSoft Chew69.4/100Disclosure GapsInClover Sleek is one of the more cat-specific products in this aisle because it is built as a feline chew for skin, coat, and hairball support. The label discloses omega-3 fatty acids 75 mg and organic inulin 50 mg per two chews, with biotin, zinc proteinate, coconut glycerin, lecithin, and protease also part of the formula logic. The catch: several important ingredients are named but not individually dosed, and the formula does not include collagen, hyaluronic acid, or ceramides.
Best forOwners who want a cat-only chew that combines omega support, prebiotics, keratin cofactors, and hairball-adjacent support.
Integumentary Biology Focus Every Dose DisclosedClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWhat's in it
- Omega-3 fatty acids from fish oil and algae at 75 mg per two-chew serving.
- Organic inulin 50 mg per serving, plus biotin, zinc proteinate, coconut glycerin, lecithin, and chicken liver powder.
- A feline-formulated soft chew from a NASC Quality Seal company.
What's not in it
- Separate EPA and DHA amounts.
- Per-serving doses for biotin, zinc, coconut glycerin, lecithin, or protease.
- Collagen peptides, hyaluronic acid, ceramides, or a public lot-level COA.
Label snapshotFive-lane cat system, two doses disclosedOmega-3 75 mg + Inulin 50 mg per 2 chews + biotin, zinc proteinate, coconut glycerin, protease (undosed)?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsThe brand PDP discloses two active ingredients with per-serving doses: Omega-3 Fatty Acid (fish oil, algae) 75 mg and Organic Inulin 50 mg, both stated against a defined serving size of two 1-gram chews. Inactive ingredients are fully enumerated by identity, including biotin, zinc proteinate, sunflower lecithin, coconut glycerin, chickpea flour, chicory root, and chicken fat.Biotin, zinc proteinate, protease, and coconut glycerin are named ingredients in the formulation logic but live in the inactive list without per-serving milligram or microgram amounts.Active Ingredients Per Two 1-Gram Chews: Omega-3 Fatty Acid (Fish oil, Algae) 75 mg; Organic Inulin 50 mg.The formula maps to multiple integumentary-adjacent domains rather than a single coat-shine claim. Skin-barrier and hydration support is addressed by Omega-3 fatty acids (fish oil and marine microalgae) 75 mg, with sunflower lecithin and coconut glycerin as supporting lipid carriers.No collagen, gelatin, hyaluronic acid, ceramide, or silica is present, so the dermal-matrix and hydration-matrix lanes are thinner than a full integumentary system map.Critical omega-3 fatty acids, biotin, zinc, coconut oil and prebiotics work from the inside out for healthy skin and radiant coat. Sleek's scientific formula supports skin hydration, encourages hair follicle repair, manages shedding and controls hairballs.The barrier-lipid lane is anchored by Omega-3 fatty acids 75 mg per 2-chew serving, sourced from both menhaden fish oil and marine microalgae, which delivers a marine and algal DHA/EPA combination rather than a flax-only ALA precursor. Sunflower lecithin contributes phospholipids relevant to membrane and barrier integrity.The 75 mg total omega-3 per 2-chew serving is on the light side of barrier-supportive omega doses for a 10 lb cat, especially because the disclosure is a single combined number rather than a separated EPA and DHA split.Therapeutic levels of DHA and EPA omega-3 fatty acids promote skin health and hydration while powerful coat conditioners biotin and zinc help soothe skin and strengthen hair follicles for sleek, shiny coats that shed less.Structural-support architecture is the thinnest lane in this formula. There is no collagen peptide, no gelatin, no hydroxyproline, and no isolated whey or egg protein in the active panel. Chickpea flour and chicken liver powder appear in the inactive matrix as flavor and binding carriers rather than as disclosed structural-support nutrients with milligram amounts.Structural support is implied at most through inactive carriers (chickpea flour, chicken liver powder) without a disclosed dermal-matrix nutrient or per-serving dose.Active Ingredients Per Two 1-Gram Chews: Omega-3 Fatty Acid (Fish oil, Algae) 75 mg; Organic Inulin 50 mg.Keratin and follicle logic is explicitly part of the product positioning.Biotin and zinc proteinate carry no per-chew dose on the public label; both live in the inactive list rather than the active panel. No silica, MSM, methylsulfonylmethane, or sulfur-donor ingredient is included.Powerful coat conditioners biotin and zinc help soothe skin and strengthen hair follicles for sleek, shiny coats that shed less.Quality program signals are above the category median but stop short of public per-lot finished-product verification for buyers.No public per-lot Certificate of Analysis for the finished Sleek SKU is surfaced, no buyer-accessible batch-lookup tool is described, and no named third-party finished-product analytical lab (e.g., NSF, Eurofins, ConsumerLab) is named for…The current quality systems in place are cGMP, AAFCO, the FDA, HACCP and NASC Independent Audits.The claim register is mostly disciplined and species-appropriate. The product is positioned as a cat-only supplement with a feline-specific dose (2 chews per 10 lbs body weight) and is formulated under a biochemist-led, NASC-Primary-Supplier brand framework.No finished-formula peer-reviewed feline clinical study on Sleek is cited.Sleek's scientific formula supports skin hydration, encourages hair follicle repair, manages shedding and controls hairballs.Format is a soft chew flavored with natural chicken liver powder, chicken fat, and natural cream flavoring, which is the highest-acceptance format in the feline category and bypasses the pill-refusal problem that defines cat supplementation.No published feline palatability study is named in brand materials.2 chews per day per 10 lbs. of bodyweight.Last reviewed: May 21, 2026Sources: Product page · Retailer listing · Regulatory filing3ICInClover Sleek Skin & Coat Chews for CatsInClover Research (Boulder, CO) · Soft Chew · Core Beauty SystemInClover Sleek is one of the more cat-specific products in this aisle because it is built as a feline chew for skin, coat, and hairball support. The label discloses omega-3 fatt...Integumentary Biology FocusNASC Quality SealEvery Dose Disclosed69.4/100Disclosure Gaps
4Rank67/100Disclosure Gaps4RankWPPowderWholistic Pet Organics Feline Complete Multivitamin Powder
Wholistic Pet Organics · Powder
Powder67/100Disclosure GapsWholistic Feline Complete is a cat-specific whole-food powder with a broad wellness-topper shape. It covers vitamins, minerals, enzymes, essential fatty acids, antioxidants, and digestive microflora in pumpkin and whitefish flavor options. The catch: the product page does not show per-ingredient doses or strong public testing verification.
Best forOwners who want a cat-specific whole-food powder topper and care more about broad ingredient categories than exact dose comparison.
Integumentary Biology Focus Every Dose DisclosedClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWhat's in it
- It includes whole-food vitamins and minerals, digestive enzymes, essential fatty acids, antioxidants, and probiotic microflora.
- It comes in pumpkin and whitefish flavor variants for daily mixing into food.
- It is manufactured in the USA in an FDA-registered facility using human-grade ingredient positioning.
What's not in it
- It does not publish per-ingredient mg or IU amounts on the product page.
- It does not show a public third-party COA, named testing laboratory, or NASC Quality Seal.
- It does not clearly disclose taurine inclusion or kitten and pregnant-queen label cautions.
Label snapshotBroad daily multivitamin, fish protein base, no collagen or HA laneVit C 33.3 mg + Omega-3 390 mg + Omega-6 113 mg + Vit E 2.96 IU/kg + 7 enzymes + 1.25B CFU/g probiotics?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsDisclosure is partial and mixes units, which is a structural friction for buyers trying to evaluate the formula at the per-serving level. Vitamin C is disclosed as 33.3 mg in the guaranteed analysis, total omega-3 fatty acids at 390 mg, and total omega-6 fatty acids at 113 mg.Vitamin E is on a per-kilogram concentration basis rather than per-teaspoon, and most actives - the seven enzymes, the two probiotic strains in CFU terms beyond the per-gram value, the kelp and flaxseed inclusion rates, the lecithin…Vitamin E 2.96 IU/kg; Ascorbic Acid (Vitamin C) 33.3 mg; Total Omega-3 Fatty Acids 390 mg; Total Omega-6 Fatty Acids 113 mg.Feline Complete is built as a broad whole-food multivitamin rather than a dedicated integumentary formula, but several lanes still map cleanly to skin and coat. Organic flaxseed plus the omega-3 (390 mg) and omega-6 (113 mg) guaranteed-analysis values cover a barrier-lipid lane.Hydration, dermal-matrix collagen, and a dedicated keratin lane with disclosed biotin or zinc are missing.Total Body Health. Thick, lustrous coat with supple, healthy skin. Regulate normal immune, digestive, and organ system function.The barrier-lipid half of the architecture is genuinely present. Total omega-3 fatty acids are disclosed at 390 mg and total omega-6 at 113 mg in the guaranteed analysis, with organic flaxseed as the primary plant-source lipid carrier and the whole-fish protein blend (cod, haddock, pollock) adding marine-source omega exposure through the protein matrix.No hyaluronic acid, ceramide, or hydration ingredient is included. EPA and DHA are not enumerated separately as milligrams.Total Omega-3 Fatty Acids 390 mg; Total Omega-6 Fatty Acids 113 mg.Most cat skin-coat powders score tier 1 on this criterion because they rely on oils alone. Feline Complete carries a whole-fish protein base from cod, haddock, and pollock with a guaranteed-analysis crude-protein minimum of 15 percent, which is a meaningful structural-protein contribution unusual for a daily multivitamin powder.No named collagen, hydrolyzed protein, or peptide ingredient. The structural-protein story is delivered through a whole-food fish-protein base rather than a dose-controlled collagen lane.Whole Fish Protein (Cod, Haddock, Pollock). Crude Protein (min) 15%.Keratin-relevant nutrition is implied rather than disclosed. The whole-fish protein base contributes sulfur-containing amino acids - methionine and cysteine - that participate in keratin formation, and organic kelp contributes trace minerals including iodine.Biotin is not disclosed, zinc is not disclosed at the active-panel level, and silica or MSM is absent. Nails are not named in the benefit register.Thick, lustrous coat with supple, healthy skin.Quality program signals are credible and exceed category median, but stop short of public per-lot finished-product verification. Wholistic Pet Organics holds USDA Organic certification, the NASC Quality Seal, and is listed as a NASC Primary Supplier in the independent NASC directory after a personal interview and rigorous independent facility audit.USDA Organic plus NASC Quality Seal plus FDA-registered in-house manufacturing credibly support tier 7.USDA Organic & NASC Certified. Third-Party Tested for Purity & Safety. Made In-House for Quality Control.Most of the claim register is responsibly framed as wellness support. The product is positioned as a cat-only daily multivitamin, the headline coat-and-skin claim is 'thick, lustrous coat with supple, healthy skin,' and the broader benefit copy is 'Total Body Health' and 'Regulate normal immune, digestive, and organ system function' - all functional wellness language.The allergy-symptom claim is the principal line-of-sight risk.Aids in the reduction of allergy symptoms.Format is a fine powder mixed into wet or dry food, which avoids pill refusal but introduces taste-and-texture friction unfamiliar to cat-supplement buyers used to chews and treats.Powder-into-food format is less forgiving than soft chews or treats for cat owners managing finicky eaters, and customer reviews reflect taste-and-aroma refusal in a meaningful minority of cats.Cats 1-7 lbs: 1 teaspoon; Cats 8-14 lbs: 1 1/2 teaspoons; Cats 15 lbs and over: 2 teaspoons. Start with a smaller amount and gradually increase to the recommended amount.Last reviewed: May 21, 2026Sources: Product page · Regulatory filing · Retailer listing4WPWholistic Pet Organics Feline Complete Multivitamin PowderWholistic Pet Organics · PowderWholistic Feline Complete is a cat-specific whole-food powder with a broad wellness-topper shape. It covers vitamins, minerals, enzymes, essential fatty acids, antioxidants, and...NASC Quality SealEvery Dose DisclosedMade In USA67/100Disclosure Gaps
5Rank66.2/100Disclosure Gaps5RankHGSoft chewHerbsmith Glimmer Skin & Coat Chews
Herbsmith · Soft chew
Soft chew66.2/100Disclosure GapsHerbsmith Glimmer is strongest as a barrier-lipid chew, especially for owners comparing omega and GLA products. It discloses multiple oil and herb amounts, including anchovy oil, DHA Gold, krill oil, borage oil, evening primrose oil, black sesame seed, and polygonum. The catch: it does not include collagen, hyaluronic acid, ceramides, biotin, zinc, silica, or a dedicated nail-support lane.
Best forOwners who mainly want omega and GLA-style lipid support for skin and coat quality in a chew format.
Integumentary Biology Focus Every Dose DisclosedClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWhat's in it
- Anchovy oil, DHA Gold, krill oil, borage oil, evening primrose oil, black sesame seed, and polygonum with per-chew amounts disclosed.
- A deeper oil blend than many basic fish-oil chews, including both EPA/DHA sources and GLA-style omega-6 sources.
- NASC Quality Seal support, USA manufacturing, and brand-side third-party testing language.
What's not in it
- Collagen, gelatin, hydrolyzed protein, or amino acids for dermal structure.
- Hyaluronic acid, ceramides, biotin, zinc, silica, or MSM.
- A public lot-level COA or named independent lab tied to this chew.
Label snapshotMulti-oil + GLA stack with all doses disclosed · no collagen or HA laneAnchovy oil 300 mg, DHA Gold 280 mg, krill oil 28 mg, borage oil 50 mg, evening primrose oil 50 mg, black sesame seed 420 mg, polygonum 420 mg per Large Chew?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsHerbsmith publishes per-chew milligram doses for every active ingredient in Glimmer on a dedicated ingredient-detail page, separated by chew size. Large Chews disclose Black Sesame Seed at 420 mg, Polygonum at 420 mg, Anchovy Oil at 300 mg, DHA Gold at 280 mg, Borage Oil at 50 mg, Evening Primrose Oil at 50 mg, and Krill Oil at 28 mg per chew.EPA, DHA, and GLA totals are not disclosed in milligrams per chew, and a full guaranteed-analysis table with crude protein, fat, fiber, and moisture is not surfaced on the brand PDP.Large Chews: Black Sesame Seed 420 mg, Polygonum 420 mg, Anchovy Oil 300 mg, DHA Gold 280 mg, Borage Oil 50 mg, Evening Primrose Oil 50 mg, Krill Oil 28 mg.The formula maps to skin barrier (EPA, DHA, and GLA from anchovy oil, DHA Gold, krill oil, borage oil, and evening primrose oil), barrier-lipid hydration support (GLA from borage and primrose oils, which support endogenous skin oil production), antioxidant and TCM coat-quality support (black sesame seed and polygonum), and lightly to follicle and renewal pathways through the…Dermal matrix, hydration, and dedicated nail or keratin nutrient lanes are missing.Glimmer contains EPA & DHA for inflammation balance and GLA to support skin barrier repair, plus black sesame seed and polygonum as skin-supporting herbs.Barrier-lipid architecture is the strongest layer of this formula and unusually well-developed for a soft chew.No hyaluronic acid, ceramide, or other hydration ingredient is included. Adding a disclosed hydration active and publishing EPA, DHA, and GLA mg totals would lift from tier 9 toward tier 10.Large Chews: Anchovy Oil 300 mg, DHA Gold 280 mg, Borage Oil 50 mg, Evening Primrose Oil 50 mg, Krill Oil 28 mg.The Glimmer formula contains no collagen peptides, no gelatin, no marine collagen, no hydrolyzed protein, and no free-amino-acid lane mapped to dermal matrix support. The seven disclosed actives are all either lipids (anchovy oil, DHA Gold, borage oil, evening primrose oil, krill oil) or herbs (black sesame seed, polygonum).No structural-support ingredient appears in the formula. Adding disclosed collagen peptides, gelatin, marine collagen, or a hydrolyzed-protein lane with milligram disclosure would lift from tier 1 toward tier 7 to 10.Black Sesame Seed, Polygonum, Anchovy Oil, DHA Gold, Borage Oil, Evening Primrose Oil, Krill Oil; Additional ingredients in chews only: Rice Bran, Rice Flour, Sunflower Lecithin, Oat Groats, Salmon Meal, Vegetable Glycerin, Fruit Juice, Natural Grain Dextrin, Brewers Yeast, Sorbic Acid.The formula does not include a dedicated keratin or nail-support nutrient set. There is no disclosed biotin, no zinc, no silica, no sulfur donor such as MSM or cysteine, and no amino-acid building blocks that the rubric flags for full keratin and nail-support logic.No biotin, zinc, silica, sulfur donor, or amino-acid building block is disclosed as a keratin or nail-support active. Adding a disclosed keratin nutrient set with milligram disclosure would lift from tier 4 toward tier 8 to 10.Black Sesame Seed has been used for thousands of years in Chinese medicine to strengthen the skin and coat, and Polygonum has long been used to support healthy skin.Herbsmith is a National Animal Supplement Council Primary Supplier member, listed on the public NASC directory at nasc.cc, and the brand displays the NASC Quality Seal directly on the Glimmer product page.No public lot-level Certificate of Analysis program, no named third-party contract laboratory, and no buyer-accessible batch-lookup tool.Backed by the NASC Seal + 100% Quality Guarantee. Made in our own facility under veterinary oversight. Every batch meets the highest safety and quality standards. Independent third-party labs confirm what's on the label is exactly what's in the bottle.Claim language on the brand surface is generally disciplined for the category. Skin and coat support, skin barrier hydration, and coat-quality framing are positioned around omega fatty acids, GLA, and traditional herbs rather than around disease treatment.No finished-formula peer-reviewed canine or feline trial is referenced, and some downstream marketing surfaces use 'natural remedy' framing that the brand PDP does not directly qualify.Consult with your veterinarian before using this product in animals with known allergies to shellfish.Daily-use design is strong. The format is a soft chew, eliminating pill-administration friction and supporting daily palatability.Only a 60-count pack size is offered for each chew, which compresses dosing horizon for large dogs at four chews per day, and the brand PDP does not surface customer-review signal at capture.Small Chews — under 10 lbs: 1; 10-19 lbs: 2; 20-29 lbs: 3; 30-59 lbs: 4. Large Chews — under 30 lbs: 1; 30-59 lbs: 2; 60-99 lbs: 3; over 100 lbs: 4. Cats — under 10 lbs: 1 Small Chew; 10-19 lbs: 2 Small Chews. Puppies and kittens: same as dogs.Last reviewed: May 21, 2026Sources: Product page · Retailer listing5HGHerbsmith Glimmer Skin & Coat ChewsHerbsmith · Soft chewHerbsmith Glimmer is strongest as a barrier-lipid chew, especially for owners comparing omega and GLA products. It discloses multiple oil and herb amounts, including anchovy oil...NASC Quality SealEvery Dose DisclosedMade In USA66.2/100Disclosure Gaps
6Rank64.4/100Disclosure Gaps6RankFPPowderFera Pets Collagen Plus — Powder Supplement for Dogs and Cats
Fera Pets, Inc. (Glendale, CA) · Powder
Powder64.4/100Disclosure GapsFera Collagen Plus is the strongest structural collagen product in the set, with multiple collagen types and clean dose disclosure. Each serving includes bovine collagen 1,800 mg, marine cod collagen 100 mg, UC-II 20 mg, eggshell membrane 50 mg, bamboo silica 20 mg, and vitamin C 10 mg. The catch: it has no omega, ceramide, or hyaluronic acid lane, so it is better viewed as a collagen powder than a complete skin-and-coat system.
Best forOwners who specifically want a collagen-focused powder for structural support and are not expecting omega or hydration support in the same product.
Integumentary Biology Focus Every Dose DisclosedClean FormulaPublic Lab AccessLot-Specific ResultsNASC Quality Seal Clinical Evidence Published Made In USAWhat's in it
- Bovine collagen, marine collagen, UC-II collagen, eggshell membrane, bamboo silica, and vitamin C with full per-serving amounts disclosed.
- No inactive ingredients listed, which makes the formula unusually simple.
- NASC Quality Seal support and public per-lot COA lookup from Fera.
What's not in it
- Omega-3, omega-6, EPA, DHA, ceramides, or hyaluronic acid.
- Biotin, zinc, MSM, or a full keratin-and-nail nutrient lane.
- A flavor system or chew backup for cats that reject plain powder.
Label snapshot6 actives · all doses disclosed · no inactivesBovine Collagen 1,800 mg (types I, III, V, X), Marine Collagen 100 mg, UC-II 20 mg, Eggshell Membrane 50 mg, Vitamin C 10 mg, Bamboo Extract 70% silica 20 mg?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsActive-ingredient disclosure is complete. The brand PDP names every meaningful active and its per-serving milligram amount on a single visible panel: Upcycled Bovine Collagen 1,800 mg (types I, III, V, and X), Wild Caught Marine Collagen from Cod 100 mg, UC-II undenatured type II collagen 20 mg, Eggshell Membrane 50 mg, Vitamin C 10 mg, and Bamboo Extract at 70% silica 20 mg.Strain-level disclosure is not relevant here because there is no probiotic; the formula is already at tier-10 transparency.Upcycled Bovine Collagen 1800 mg · Wild Caught Marine Collagen (from Cod) 100 mg · UC-II undenatured type II collagen 20 mg · Eggshell Membrane 50 mg · Vitamin C 10 mg · Bamboo Extract (70% Silica) 20 mg. Inactive Ingredients: None.Coverage is concentrated in the dermal-matrix lane. The rubric evaluates whether a formula maps to multiple integumentary domains — skin barrier lipids, hydration, dermal matrix, coat fiber, follicle support, and nails.No omega-3 or omega-6 lipid lane, no hyaluronic acid or ceramide for hydration, and no biotin or zinc for a keratin-vitamin lane. Adding even one barrier-lipid active and one hydration active would lift toward tier 7-8.Bone, Gut, Joint and Skin Supplement - 5 Types of Collagen + Clinically Studied UC-II.There is no barrier-lipid or hydration architecture in the formula. The active panel contains five collagen sources, eggshell membrane, vitamin C, and bamboo silica — no omega-3 or omega-6 fatty acid, no fish oil, no marine lipid, no ceramide, no hyaluronic acid, no coconut oil, and no named humectant.No barrier-lipid or hydration active is present. Adding a disclosed omega-3 source (anchovy oil, krill oil, or algal DHA) and a named hydration ingredient (hyaluronic acid or a ceramide) would lift from tier 1 toward tier 8-10.Active Ingredients: Upcycled Bovine Collagen 1800 mg · Wild Caught Marine Collagen (from Cod) 100 mg · UC-II undenatured type II collagen 20 mg · Eggshell Membrane 50 mg · Vitamin C 10 mg · Bamboo Extract (70% Silica) 20 mg. Inactive Ingredients: None.This is the strongest layer of the formula and one of the deepest dermal-matrix architectures in the cat skin-coat competitor set. The bovine collagen line delivers 1,800 mg per serving across four collagen types (I, III, V, and X), with type I sitting at roughly 90% of the body's total collagen and type III concentrated in elastin-adjacent connective tissue.Nothing structurally would lift the score — the formula already names five collagen types, discloses doses, includes the synthesis cofactor (vitamin C), and uses both hydrolyzed and undenatured mechanisms in the same panel.Fera's Collagen Plus contains full spectrum support for your pet's active lifestyle with types I, II, III, V, & X collagen.Keratin and nail logic is partial. Bamboo extract at 20 mg standardized to 70% silica delivers roughly 14 mg of plant-source silica per serving, and silica is a recognized cofactor in connective-tissue and keratin formation — it is the only ingredient in the formula that maps explicitly to nail and coat-fiber strength.No biotin, no zinc, and no MSM or cysteine sulfur donor. Adding a disclosed biotin or zinc dose plus a sulfur-donor active alongside the existing silica would lift toward tier 8-10.Bamboo Extract (70% Silica) 20 mg · Eggshell Membrane 50 mg.Testing infrastructure for Collagen Plus inherits the strong brand-level program documented for the Fera Pets line. The brand carries the NASC Quality Seal, holds active primary-supplier status in the public NASC directory, and undergoes the facility audits and Adverse Event Reporting System (NAERS) participation NASC membership requires.Specific contract laboratory is not named on any public surface for Collagen Plus, and the per-lot COA scope (which assays run per batch) is not enumerated in plain language.Each batch undergoes independent third-party testing for purity, potency, and safety.Claim discipline is responsible and stays inside structure/function language across surfaces. Brand PDP register reads 'Promotes Healthy Joints,' 'Supports Skin Health,' 'Helps Maintain Bone & Muscle Health,' 'Supports a Healthy Gut.' The brand avoids anti-itch framing, disease-treatment language, allergy-treatment claims, and any 'reverse aging' or 'cures arthritis' overreach.No finished-formula clinical trial on Collagen Plus, and the PDP does not link the underlying UC-II canine osteoarthritis literature (the published comparison against robenacoxib in client-owned dogs) or the bovine and marine collagen…Promotes Healthy Joints · Supports Skin Health · Helps Maintain Bone & Muscle Health · Supports a Healthy Gut.Daily-use design is solid with one structural caveat for cat owners. The pouch ships at 60 servings, dosed at 1/2 teaspoon per 25 lb of body weight, which delivers a generous two-month supply for cats and small dogs (one serving covers most adult cats outright) and roughly a one-month supply for medium dogs.Flavorless powder has no native palatability driver, and the '1/2 teaspoon per 25 lb' rule scales awkwardly for small cats.Feed orally according to pet's weight. This is a flavorless powder that is best used regularly on a long-term basis for best results.Last reviewed: May 21, 2026Sources: Product page · Regulatory filing · Retailer listing6FPFera Pets Collagen Plus — Powder Supplement for Dogs and CatsFera Pets, Inc. (Glendale, CA) · PowderFera Collagen Plus is the strongest structural collagen product in the set, with multiple collagen types and clean dose disclosure. Each serving includes bovine collagen 1,800 m...Lot-Specific ResultsNASC Quality SealEvery Dose Disclosed64.4/100Disclosure Gaps
7Rank63/100Disclosure Gaps7RankNVSoft chewNaturVet Skin & Coat Cat Soft Chews
NaturVet (a Garmon Corp brand) · Soft chew
Beauty SystemSoft chew63/100Disclosure GapsNaturVet Skin & Coat Cat Soft Chews are a simple feline chew with clear doses for omegas, antioxidants, zinc, and biotin. Per two chews, the label shows omega-3 100 mg, omega-6 25 mg, omega-9 2.5 mg, vitamin C 12.5 mg, vitamin E 5 IU, zinc 2.5 mg, and biotin 1 mcg. The catch: it has no collagen, hyaluronic acid, ceramides, silica, or MSM, and the omega disclosure does not separate EPA and DHA.
Best forOwners who want an affordable cat-specific soft chew for basic skin and coat support.
Integumentary Biology Focus Every Dose DisclosedClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWhat's in it
- Omega-3, omega-6, omega-9, vitamin C, vitamin E, zinc, and biotin with per-serving amounts disclosed.
- Flaxseed, salmon oil, and lecithin as the main lipid and phospholipid sources.
- A flat two-chew daily serving in a salmon-flavored cat chew.
What's not in it
- Collagen, gelatin, hyaluronic acid, ceramides, silica, or MSM.
- Separate EPA and DHA amounts, which matters because cats use marine EPA/DHA more directly than plant ALA.
- A public lot-level COA or buyer-facing batch lookup.
Label snapshotMulti-lane feline omega + vitamin + lecithin chew, no collagen or HA laneALA 100 mg + LA 25 mg + Omega-9 2.5 mg + Vit C 12.5 mg + Vit E 5 IU + Zinc 2.5 mg + Biotin 1 mcg per 2 chews?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsPer-serving active doses are enumerated on the cat brand product page for every meaningful active in the guaranteed analysis panel. Alpha-linolenic acid (Omega-3) 100 mg, linoleic acid (Omega-6) 25 mg, omega-9 fatty acids 2.5 mg, calcium ascorbate (vitamin C) 12.5 mg, vitamin E 5 IU, zinc 2.5 mg, and biotin 0.001 mg are each disclosed at the per-2-soft-chew level.Doses are disclosed per 2-chew serving rather than per individual chew. EPA and DHA are not enumerated as separate milligram values even though salmon oil is present in the matrix.Guaranteed Analysis per 2 Soft Chews: Crude Fat 14.0% min, Moisture 14.5% max, Linoleic Acid (Omega-6) 25 mg (0.8%), alpha-Linolenic Acid (Omega-3) 100 mg (3.3%), Zinc 2.5 mg, Vitamin E 5 IU, Biotin 0.001 mg, Calcium Ascorbate (Vitamin C) 12.5 mg, Omega-9 Fatty Acids 2.5 mg.The cat formula maps to a wider integumentary footprint than the basic dog Skin & Coat SKU because it carries an omega-9 disclosure and uses lecithin as a phospholipid framing on top of the omega-3 / omega-6 backbone.Hydration (no hyaluronic acid or ceramide), dermal matrix (no collagen, gelatin, or amino-acid lane), and a dedicated nail or follicle lane are not built into this formula.Helps support healthy skin and a glossy coat. Omega-3 to help provide a protective barrier against allergens and pollutants. Omega-6 helps to add moisture to the skin and luster to the coat. Fortified with Biotin to support the overall health of the skin.Barrier-lipid logic is the strongest layer of this cat formula. Two lipid sources contribute to the omega story — flaxseed and salmon oil — and alpha-linolenic acid is disclosed at 100 mg per 2 chews, linoleic acid at 25 mg, and omega-9 fatty acids at 2.5 mg, giving a three-fatty-acid disclosure rather than the dog SKU's two.No hyaluronic acid, ceramide, or other hydration ingredient is included. EPA and DHA are not separately disclosed as milligrams even though salmon oil is present in the matrix.Linoleic Acid (Omega-6) 25 mg; alpha-Linolenic Acid (Omega-3) 100 mg; Omega-9 Fatty Acids 2.5 mg. Ingredients: Dried Brewers Dried Yeast, Glycerin, Flaxseed, Lecithin, Salmon Oil...The cat Skin & Coat Soft Chew formula contains no collagen peptides, no gelatin, no marine collagen, no hydrolyzed protein, and no free-amino-acid lane mapped to dermal matrix support. Dried brewers dried yeast, tapioca starch, and maltodextrin appear in the ingredient list, but these are chew-base carriers and humectants rather than structural-protein actives.No structural-support ingredient appears in the formula. Adding disclosed collagen peptides, marine collagen, gelatin, or a hydrolyzed-protein lane with milligram disclosure would lift from tier 1 toward tier 7-10.Ingredients: Dried Brewers Dried Yeast, Glycerin, Flaxseed, Lecithin, Salmon Oil, Water, Natural Flavoring, Tapioca Starch, Maltodextrin, Calcium Ascorbate, Sorbic Acid, Vitamin E Supplement, Zinc Sulfate, Mixed Tocopherols, Vegetable Oil, Citric Acid, Biotin.The formula includes two keratin-relevant nutrients at disclosed doses: zinc at 2.5 mg per 2 chews and biotin at 0.001 mg (1 mcg) per 2 chews. Both are categorically appropriate for feline skin and coat formulas. However, the biotin dose is light — 1 mcg per 2-chew flat daily serving is well below biotin levels in dedicated keratin formulas.Biotin at 1 mcg per 2-chew flat daily serving is light, and silica, MSM, or amino-acid building blocks for keratin formation are missing. Claws are not named as a marketed outcome.Zinc 2.5 mg; Biotin 0.001 mg. Fortified with Biotin to support the overall health of the skin.Quality program signals are stronger than category median but stop short of public per-lot finished-product verification. NaturVet carries the NASC Quality Seal as a founding preferred supplier and is manufactured by Garmon Corp, which holds NASC Preferred Supplier status through 2027-09-15 with annual recertification required.UL audits the facility, not a per-batch finished-product spec.FDA-registered & audited; Compliant with cGMP's highest industry standards; Third-party audited by UL; NASC founding member.Claim register is disciplined and species-appropriate. The product is positioned as a cat-only supplement for cats over 12 weeks of age, with a flat 2-chew daily serving and an intermittent-or-supplemental-feeding statement.No finished-formula clinical study on the cat Skin & Coat Soft Chew SKU is cited. Evidence rests on category-level omega-3, omega-6, biotin, and zinc reasoning rather than feline-specific data.Helps support healthy skin and a glossy coat. Omega-3 to help provide a protective barrier against allergens and pollutants. Fortified with Biotin to support the overall health of the skin. For use in cats over the age of 12 weeks.Daily-use design is materially stronger on the cat SKU than on the dog version. Format is a soft chew with a salmon flavor, which is high-acceptance for cats and bypasses pill refusal. The daily serving is a flat 2 chews regardless of body weight, removing the weight-banded calculation friction that the dog SKU carries at 1-2, 3-4, 5-6, or 7-8 chews per day.No published flavor-acceptance or palatability study is cited for the cat SKU, and no autoship cadence is named on the brand PDP.Suggested Daily Dose: 2 soft chews per day. For use in cats over the age of 12 weeks. This product is intended for intermittent or supplemental feeding only.Last reviewed: May 21, 2026Sources: Product page · Regulatory filing · Retailer listing7NVNaturVet Skin & Coat Cat Soft ChewsNaturVet (a Garmon Corp brand) · Soft chew · Core Beauty SystemNaturVet Skin & Coat Cat Soft Chews are a simple feline chew with clear doses for omegas, antioxidants, zinc, and biotin. Per two chews, the label shows omega-3 100 mg, omega-6 ...Integumentary Biology FocusClean FormulaNASC Quality Seal63/100Disclosure Gaps
8Rank59.2/100Disclosure Gaps8RankVSSoft chewVetriScience Veterinary Strength Allergy & Itch Support (Derma Strength Pro)
VetriScience Laboratories (a FoodScience LLC brand) · Soft chew
Related BenchmarkSoft chew59.2/100Disclosure GapsVetriScience Derma Strength Pro is a strong allergy-and-itch benchmark with unusually clear active dosing. Each chew discloses quercetin phytosome 125 mg, omega-6 65 mg, perilla seed extract 40 mg, omega-3 26 mg, hyaluronic acid 5 mg, and Oligonol 5 mg. The catch: it is more of an itch and barrier-support chew than a full skin-and-coat system, with no collagen, biotin, zinc, silica, or MSM.
Best forOwners who want a vet-channel chew focused on seasonal skin comfort and disclosed active doses.
Integumentary Biology Focus Every Dose DisclosedClean FormulaNASC Quality Seal Clinical Evidence Published Made In USAWhat's in it
- Quercetin phytosome, omega-6, perilla seed extract, omega-3, hyaluronic acid, and Oligonol with per-chew amounts disclosed.
- A duck-flavored soft chew labeled for dogs and cats with weight-banded dosing.
- NASC Quality Seal support, SQF-certified facility language, FDA-registered facility language, and USA manufacturing.
What's not in it
- Collagen, gelatin, hydrolyzed protein, or amino-acid nutrients for dermal matrix support.
- Biotin, zinc, silica, MSM, or other dedicated keratin and nail nutrients.
- A broad beauty-system architecture beyond itch, lipid, hydration, and antioxidant support.
Label snapshotAll six actives dose-disclosed per chew · no proprietary blendsQuercetin Phytosome 125 mg, Omega 6 65 mg, Perilla seed 40 mg, Omega 3 26 mg, Hyaluronic Acid 5 mg, Oligonol 5 mg?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsThe veterinary-channel PDP and an independent retailer both publish the full per-chew active-dose table with no proprietary blends: Quercetin Phytosome 125 mg, Omega 6 65 mg, Perilla seed extract 40 mg, Omega 3 26 mg, Hyaluronic Acid 5 mg, Oligonol 5 mg in a 2 g chew.Per-active doses are disclosed for every meaningful ingredient, but the consumer-facing brand PDP buries the full table behind the veterinary-channel mirror.Quercetin Phytosome™ 125 mg, Omega 6 Fatty Acids 65 mg, Perilla frutescens Seed Extract 40 mg, Omega 3 Fatty Acids 26 mg, Hyaluronic Acid (HyaMax® Low Molecular Weight Sodium Hyaluronate) 5 mg, Oligonol® 5 mg.Coverage is concentrated in two integumentary domains: skin barrier lipids (omega 3 and 6 fatty acids) and skin hydration (low-molecular-weight hyaluronic acid). A third domain — barrier-related antioxidant tone via quercetin phytosome, perilla, and Oligonol — is positioned for histamine and oxidative-stress modulation rather than for structural skin and coat outcomes.Adding disclosed collagen, gelatin, amino-acid, biotin, zinc, or silica content would broaden coverage from the current 2-3 integumentary lanes (barrier lipids, hydration, antioxidant tone) toward the 5-6 domain coverage required for tier…Promotes structural integrity of the epidermis.Barrier-lipid and hydration logic is the most coherent part of the formula. Omega 6 fatty acids at 65 mg and Omega 3 fatty acids at 26 mg per chew (sourced through flaxseed meal, flaxseed oil, and safflower oil in the inactive list) cover the lipid layer with a roughly 2.5:1 omega-6 to omega-3 ratio.Ceramide-class nutrients and a published rationale for the 2.5:1 omega-6 to omega-3 ratio are absent. A higher absolute omega-3 dose (EPA/DHA specification rather than 'Omega 3 Fatty Acids' as a category total) would lift toward tier 9-10.Omega 6 Fatty Acids 65 mg ... Omega 3 Fatty Acids 26 mg ... Hyaluronic Acid (HyaMax® Low Molecular Weight Sodium Hyaluronate) 5 mg.No collagen peptides, gelatin, structural amino acids, or other dermal-matrix nutrients are disclosed in the active or inactive ingredient lists. The formula's claim to 'promote structural integrity of the epidermis' rests on barrier-lipid and antioxidant logic rather than on a dermal-matrix architecture.Adding disclosed collagen, gelatin, protein, or amino-acid actives in a meaningful per-chew dose would lift this from tier 1-2 toward tier 7-10. The current architecture does not address the dermal matrix.Active Ingredients per 2 g chew: Quercetin Phytosome™ 125 mg, Omega 6 Fatty Acids 65 mg, Perilla frutescens Seed Extract 40 mg, Omega 3 Fatty Acids 26 mg, Hyaluronic Acid 5 mg, Oligonol® 5 mg.No biotin, zinc, silica, sulfur donors (MSM, methionine, cysteine), or other keratin- and nail-relevant nutrients are disclosed in either the active or inactive ingredient lists. The brand positions the chew as allergy and itch support with structural-epidermis language, but the keratin, nail, and follicle layer is not covered by the formulation.Adding biotin, zinc, silica, MSM, or methionine at disclosed per-chew doses would lift this from tier 1-2 toward tier 7-10. As-formulated, the keratin and nail layer is unaddressed.Active Ingredients per 2 g chew: Quercetin Phytosome™ 125 mg, Omega 6 Fatty Acids 65 mg, Perilla frutescens Seed Extract 40 mg, Omega 3 Fatty Acids 26 mg, Hyaluronic Acid 5 mg, Oligonol® 5 mg.Testing posture is strong on the framework side and modest on the public-document side. Parent company FoodScience LLC is a NASC Primary Supplier and NASC Quality Seal holder — the highest NASC tier, verified independently by NASC's own supplier directory. The Williston, VT manufacturing facility is SQF-certified, FDA-registered, and operated under FDA cGMP.A public per-lot COA program, a batch-lookup tool, and a named third-party laboratory (NSF, Eurofins, etc.) would lift this from tier 7 toward tier 9-10. The current setup is credible institutionally but not batch-linked for buyers.Our facilities in Vermont are SQF-certified and adhere to FDA's current Good Manufacturing Practices (cGMP). Each ingredient undergoes third-party testing for purity and composition.Claim discipline is mixed.Tightening the retail claim register away from 'clinical-strength support for seasonal and environmental allergies' and 'helps relieve itchy skin' toward the brand-PDP 'occasional discomfort' framing would lift toward tier 8-9.Supports cats and dogs with occasional discomfort or itching ... support healthy histamine levels.Daily-use design is practical. Duck-flavored soft chew with hydrolyzed duck flavor as the palatant, 2 g chew size, weight-banded 1-3 chew daily dosing, double-dose loading for the first four weeks, and dual-species (dog and cat) labeling on a single SKU. Retail distribution through Chewy at 60- and 90-count package sizes supports long-horizon supplementation.A published subscription cadence, explicit storage and shelf-life guidance, and a named third-party palatability study would lift from tier 8 toward tier 9-10.Dogs 0-25 lbs: 1 chew daily; Dogs 26-50 lbs: 2 chews daily; Dogs 51+ lbs: 3 chews daily. For extra support, the dose can be doubled for the first 4 weeks.Last reviewed: May 21, 2026Sources: Product page · Regulatory filing · Retailer listing8VSVetriScience Veterinary Strength Allergy & Itch Support (Derma Strength Pro)VetriScience Laboratories (a FoodScience LLC brand) · Soft chewVetriScience Derma Strength Pro is a strong allergy-and-itch benchmark with unusually clear active dosing. Each chew discloses quercetin phytosome 125 mg, omega-6 65 mg, perilla...NASC Quality SealEvery Dose DisclosedMade In USA59.2/100Disclosure Gaps
9Rank58/100Disclosure Gaps9RankNNLiquid (also softgels)Nordic Naturals Omega-3 Pet
Nordic Naturals · Liquid (also softgels)
Related BenchmarkLiquid (also softgels)58/100Disclosure GapsNordic Naturals Omega-3 Pet is the cleanest omega benchmark on the page, especially for buyers who care about fish-oil testing. It delivers EPA 736 mg and DHA 506 mg per teaspoon from anchovy and sardine oil, with public lot-number COA lookup for potency, contaminants, and freshness markers. The catch: it is only an omega-3 product, so it does not cover collagen, hydration, keratin, nails, or broader skin-structure support.
Best forOwners who specifically want a high-quality fish oil and are not expecting a complete cat skin-and-coat system.
Integumentary Biology Focus Every Dose DisclosedClean FormulaPublic Lab AccessLot-Specific ResultsNASC Quality Seal Clinical Evidence Published Made In USAWhat's in it
- Anchovy and sardine oil in re-esterified triglyceride form, with EPA and DHA amounts clearly shown per teaspoon.
- Public lot-number COA lookup for measured omega potency, heavy metals, PCBs, and freshness markers.
- A pet-specific oil without the rosemary oil or flavorings used in some human fish oils.
What's not in it
- Collagen, gelatin, amino acids, hyaluronic acid, ceramides, biotin, zinc, silica, or MSM.
- A chew or powder format for cats that resist liquid oil.
- A full skin, coat, barrier, and nail-support formula.
Label snapshotPure fish oil · no collagen, HA, or keratin lane · public batch COAAnchovy + sardine oil (rTG), 736 mg EPA / 506 mg DHA / 1,518 mg total omega-3 per tsp, d-alpha tocopherol preservative?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsActive doses are disclosed in milligrams per serving, not percentages. The 8 fl oz liquid for medium and large dogs discloses 736 mg EPA, 506 mg DHA, and 1,518 mg total omega-3 per 1 teaspoon (5 mL), and the 2 fl oz small-pet liquid discloses 142 mg EPA, 92 mg DHA, and 294 mg total omega-3 per 1 mL.Per-serving EPA and DHA are stated as label minimums with batch variance, and the actual measured potency for a specific bottle requires the buyer to enter a lot number into the COA lookup.Per 1 Teaspoon/5mL Serving — Total Omega-3 Fatty Acids: 1,518 mg (minimum); EPA: 736 mg (minimum); DHA: 506 mg (minimum).Omega-3 Pet is a pure fish oil. The only actives are EPA and DHA delivered from wild-caught anchovy and sardine oil in triglyceride form, with d-alpha tocopherol present as a preservative rather than as a scored vitamin E dose.Hydration, dermal matrix, structural protein, and a dedicated keratin or nail lane are absent. This is a category-architecture decision rather than a formulation oversight — Omega-3 Pet is intentionally a fish oil.Anchovy oil, sardine oil, d-alpha tocopherol (a preservative).The barrier-lipid half of this criterion is the strongest layer of any product in this rubric. Two wild-caught fish sources (anchovy and sardine) deliver EPA and DHA in re-esterified triglyceride form, which the brand and broader nutrition science position as more bioavailable than ethyl-ester form.No hyaluronic acid, ceramide, or named hydration ingredient is included. Adding a disclosed hydration active would lift from tier 7 toward tier 9 to 10.Omega-3 fish oils come in re-esterified triglyceride-form (rTG) and triglyceride-form (TG)... triglyceride form omega-3s are better absorbed than ethyl ester form.There is no collagen, no gelatin, no marine collagen, no hydrolyzed protein, no amino-acid lane, and no matrix-support ingredient in the formula. The complete ingredient list is anchovy oil, sardine oil, and d-alpha tocopherol as a preservative.No structural-support ingredient is present. Adding disclosed collagen peptides, gelatin, marine collagen, or a hydrolyzed-protein lane with milligram disclosure would lift from tier 1 toward tier 7 to 10.Anchovy oil, sardine oil, d-alpha tocopherol (a preservative).There is no biotin, no zinc, no silica, no sulfur donor such as MSM or cysteine, and no amino-acid building block in the formula. The only ingredients are anchovy oil, sardine oil, and d-alpha tocopherol as a preservative. Nails are not addressed in brand positioning, and follicle support is not mapped through any keratin-relevant nutrient.No keratin-relevant nutrient is present in the formula. Adding biotin, zinc, silica, or a sulfur donor with disclosed dosing would lift from tier 1 toward tier 8 to 10.Anchovy oil, sardine oil, d-alpha tocopherol (a preservative).Testing transparency is the strongest layer of this product and one of the strongest in the rubric overall. Nordic Naturals operates a public, batch-level Certificate of Analysis program at nordic.com/cofa-results that any buyer can use by entering the lot number printed by the expiration date on the bottle.Pet buyers must enter a lot number into a brand-level lookup tool rather than seeing the batch-specific COA linked directly from the Omega-3 Pet product page.Every Nordic Naturals product is tested to verify potency, purity, and freshness by certified laboratories... Certificates of Analysis (COAs) are available for each product Nordic Naturals makes.Claim language is disciplined and category-appropriate. Brand surfaces position Omega-3 Pet as supporting a soft and shiny coat, healthy joint function, eye health, brain health, and cognitive function — wellness framing, not disease treatment, and consistent with category-level EPA and DHA evidence in dogs.No finished-formula peer-reviewed canine trial is referenced for Omega-3 Pet specifically, and the brand's claim evidence rests on category-level EPA and DHA reasoning.Omega-3 Pet does not contain rosemary oil, or flavorings, in order to ensure the safety of your pets.Daily-use design is strong for an oil product. The format is offered as both liquid (2 oz, 8 oz, 16 oz) and softgels (90 and 180 count), with bottle size matched to dog weight band — the 2 oz SKU sized for cats and small dogs, the 8 oz for medium to large breeds, and the 16 oz for large to very large dogs.Liquid dispensing is widely noted as messy in product reviews, and refrigeration after opening adds household friction.10-19 lbs: 1 soft gel daily; 20-39 lbs: 2 soft gels daily; 40-59 lbs: 3 soft gels daily; 60-79 lbs: 4 soft gels daily; 80-110 lbs: 5 soft gels daily; 111-130 lbs: 6 soft gels daily.Last reviewed: May 21, 2026Sources: Product page · Retailer listing9NNNordic Naturals Omega-3 PetNordic Naturals · Liquid (also softgels)Nordic Naturals Omega-3 Pet is the cleanest omega benchmark on the page, especially for buyers who care about fish-oil testing. It delivers EPA 736 mg and DHA 506 mg per teaspoo...Lot-Specific ResultsNASC Quality SealEvery Dose Disclosed58/100Disclosure Gaps
10Rank49.6/100Sparse Public Evidence10RankPH-SDual-Texture ChubPet Honesty Skin & Coat Health Chews for Cats (Chicken Flavor, 3-Pack)
Pet Honesty · Dual-Texture Chub
Beauty SystemDual-Texture Chub49.6/100Sparse Public EvidencePet Honesty Skin & Coat Health Chews for Cats are one of the more feline-specific options because the product uses a crunchy-shell, creamy-center chub format instead of a standard soft chew. The formula names omega-3, omega-6, omega-9, vitamin C, vitamin E, biotin, zinc proteinate, fish oil, flaxseed, chicken fat, and lecithin. The catch: none of the active amounts are disclosed per chew, and the feeding rate can make the container disappear very quickly for an average cat.
Best forOwners who want a cat-specific texture format and care more about acceptance than dose-level comparison.
Integumentary Biology Focus Every Dose DisclosedClean 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
- Seven named active groups: zinc proteinate, vitamin E, biotin, total omega-3s, total omega-6s, total omega-9s, and vitamin C.
- Fish oil, flaxseed, chicken fat, and lecithin as the lipid backbone.
- A dual-texture cat chub format designed around feline treat acceptance.
What's not in it
- Per-chew doses for the named actives.
- Separate EPA and DHA amounts despite fish oil being present.
- Collagen, hyaluronic acid, ceramides, silica, MSM, or a public lot-level COA.
Label snapshotThree-lane feline chub, doses not disclosedOmega-3/6/9 + Vit C + Vit E + Biotin + Zinc Proteinate per chew (doses not disclosed)?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsActive ingredients are named on the supplement facts panel but per-chew milligram or microgram amounts are not disclosed for any of them. The label lists Zinc Proteinate, Vitamin E (D-Alpha Tocopherol), Biotin (Vitamin H), Total Omega-3s, Total Omega-6s, Total Omega-9s, and Ascorbic Acid (Vitamin C) by identity only.To move from tier 4 toward tier 7-8 the brand would need to publish per-chew milligram or microgram amounts for each of the seven named actives, separate EPA and DHA from the 'Total Omega-3s' bucket, identify the source split between fish…Zinc Proteinate, Vitamin E, Biotin (Vitamin H), Total Omega-3s, Total Omega-6s, Total Omega-9s, Ascorbic Acid (Vitamin C).The formula maps to several integumentary lanes rather than a single coat-shine claim. Skin barrier and hydration are addressed by the omega-3, omega-6, and omega-9 fatty acid lanes plus the fish oil, flaxseed, chicken fat, and lecithin matrix.There is no collagen peptide, no hyaluronic acid, no ceramide or phytoceramide, no silica, no MSM, and no sulfur-donor amino acid lane on the active panel.Cat Skin & Coat Health Chews - Crunchy & Creamy Treats with Omegas, Vitamin C & E, Biotin - Soothes Itchy, Dry Skin, Reduces Shedding & Promotes a Shiny Coat.The barrier-lipid lane is addressed by three identified omega classes (Total Omega-3s, Total Omega-6s, Total Omega-9s) and a backbone of fish oil, flaxseed, chicken fat, and lecithin on the inactive panel. The combination of marine fish oil and plant flaxseed across three omega classes is a credible multi-source barrier strategy in principle.Three structural problems hold this below tier 7-8. First, no per-chew or per-serving milligram amount is published for any omega class, so the absolute lipid dose is unknown even at the brand-stated 1-chew-per-pound serving.Total Omega-3s, Total Omega-6s, Total Omega-9s ... Fish Oil ... Flaxseed ... Lecithin.No collagen peptide, gelatin, hyaluronic acid, marine collagen, or dedicated dermal matrix nutrient is named on the active ingredient panel.To reach tier 7-8 the brand would need to add a disclosed collagen peptide dose (with type I or type III specification and average dalton range), or a hyaluronic acid or gelatin lane, on the active panel.Helps soothe skin. Promotes a healthy, shiny coat. Nourishes skin to maintain coat health.Biotin (Vitamin H) and Zinc Proteinate are both named on the active ingredient panel and are the two most direct keratin-relevant nutrients in the formula. Zinc proteinate is a chelated zinc form, which is a more bioavailability-aware choice than zinc sulfate or zinc oxide on a feline label. Biotin is named without a microgram dose.Three things keep this below tier 7-8. First, the biotin dose is not disclosed in micrograms per chew, so the buyer cannot benchmark against dedicated keratin formulas. Second, the zinc dose is not disclosed in milligrams of elemental zinc.Zinc Proteinate ... Biotin (Vitamin H).Quality program signals are at category median. Pet Honesty appears on the NASC member directory as a Primary Supplier with an 'Audited for Supplements' designation indicating NASC Quality Seal eligibility, which is a brand-level program signal.To move toward tier 7-8 the brand would need a public per-lot Certificate of Analysis for the cat Skin & Coat chub, a buyer-accessible batch-lookup tool, a named third-party finished-product analytical lab (NSF, Eurofins, ConsumerLab)…Manufactured in the USA with US and globally sourced ingredients | Made in a GMP compliant facility | NASC member company.Claim discipline is uneven and skews toward disease-adjacent positioning across the retailer channel.The 'Allergy Relief of Itchy Skin Supplement' framing on Chewy and Petco crosses the disease-adjacent line that the rubric scores against.PET HONESTY Skin & Coat Health Chews Allergy Relief of Itchy Skin Supplement for Cats.Format is the right answer for cats. The dual-texture chub pairs a crunchy outer shell with a creamy savory filling, which the brand backs with a 2023 feeding study showing '9 out of 10 cats love' the format. Chicken flavor is the highest-acceptance flavor profile in the feline supplement category. The chub format is feline-appropriate and bypasses pill refusal.The 1-chew-per-pound dosing is the central usability problem. An average 10-pound cat receives 10 chews per day, which depletes a 30-count 3.7 oz chub in 3 days and a 90-count 3-pack in about 9 days.Give one chew daily per 1lb of weight.Last reviewed: May 21, 2026Sources: Product page · Retailer listing · Regulatory filing10PH-SPet Honesty Skin & Coat Health Chews for Cats (Chicken Flavor, 3-Pack)Pet Honesty · Dual-Texture Chub · Core Beauty SystemPet Honesty Skin & Coat Health Chews for Cats are one of the more feline-specific options because the product uses a crunchy-shell, creamy-center chub format instead of a standa...Integumentary Biology FocusNASC Quality SealMade In USALow-Dose ConcernDose Disclosure Limited49.6/100Sparse Public Evidence
11Rank42.8/100Sparse Public Evidence11RankSG-SPowderSolid Gold SeaMeal Daily Wellness Supplement Powder
Solid Gold Pet · Powder
Beauty SystemPowder42.8/100Sparse Public EvidenceSolid Gold SeaMeal is a sea-vegetable powder topper with useful enzyme and fatty-acid disclosure. Per teaspoon, it discloses omega-3 ALA 3.6 percent, omega-6 LA 1.0 percent, omega-9 1.2 percent, plus amylase, protease, cellulase, and lipase activity units. The catch: it is not cat-built, has no taurine or marine EPA/DHA, and does not disclose iodine mg from kelp.
Best forOwners who want a broad seaweed-and-flax topper and understand that it is a greens powder, not a cat-specific all-in-one.
Integumentary Biology Focus Every Dose DisclosedClean 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 single lane — usually omega-3 oil or biotin — rather than covering structural support, barrier lipids, hydration, and keratin biology across the full skin & coat system.
What's in it
- It includes dried seaweed meal, flaxseed, fermentation enzymes, dried pineapple, dried lemon peel, and lactose.
- It discloses omega-3 ALA 3.6 percent, omega-6 LA 1.0 percent, and omega-9 1.2 percent per teaspoon.
- It discloses alpha-amylase 377 SKBU, protease 1.5 GDU, cellulase 10 CMCU, and lipase 37 LU per teaspoon.
What's not in it
- It does not include taurine.
- It does not include marine EPA/DHA.
- It does not disclose iodine mg from kelp or show public lot-specific COA access.
Label snapshotKelp-and-flaxseed multi-purpose topper, percentages disclosedOmega-3 ALA 3.6% + Omega-6 LA 1.0% + Omega-9 1.2% + 4 enzyme activity units per teaspoon?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsIngredient identity is fully disclosed and the guaranteed analysis publishes minimum percentages per teaspoon for the fatty acid lane and activity units for the enzyme lane.To reach tier 7-10 the brand would need to publish per-teaspoon milligram amounts for the individual minerals, vitamins, and amino acids the marketing narrative names, plus a stated source form for iodine and zinc.Linoleic Acid (Omega 6, Min.): 1.0%; Linolenic Acid (Omega 3, Min.): 3.6%; Oleic Acid (Omega 9, Min.): 1.2%; Alpha-Amylase (Min.): 377 SKBU; Protease (Min.): 1.5 GDU; Cellulase (Min.): 10 CMCU; Lipase (Min.): 37 LU.The product addresses the barrier-lipid lane through flaxseed-derived omega-3 ALA at 3.6% and omega-6 LA at 1.0% per teaspoon, plus an antioxidant-and-trace-mineral lane delivered through the dried seaweed meal matrix and brand-claimed pool of 60 trace minerals, 12 vitamins, and 22 amino acids.Three integumentary lanes the rubric weights are missing or implicit only: no disclosed collagen or gelatin lane for dermal matrix support, no hyaluronic acid or ceramide lane for hydration and barrier lipid architecture, and no disclosed…Skin & coat support; Gut support & immune system; High Quality Protein.The barrier-lipid lane is built on a single plant-oil source. Flaxseed delivers Linolenic Acid Omega-3 ALA at 3.6% minimum per teaspoon and Linoleic Acid Omega-6 LA at 1.0% minimum per teaspoon, with Oleic Acid Omega-9 at 1.2% minimum. The brand education layer connects ALA to skin and coat support and to dry, itchy skin.To reach tier 8-10 the formula would need either a marine omega source (EPA or DHA from fish oil, krill, or algae) to bridge the cat-specific ALA conversion gap, a ceramide or phytoceramide barrier-lipid ingredient, or a hyaluronic acid…Linolenic Acid (Omega 3, Min.): 3.6%... flaxseed... is rich in Omega 3 Fatty Acid to help support healthy skin and fur... nourish from the inside out and can be helpful for dogs and cats suffering from dry, itchy skin.The formula does not include a disclosed collagen peptide, gelatin, hydrolyzed protein, or dedicated dermal-matrix ingredient. The ingredient panel is Dried Seaweed Meal, Flaxseed, three fermentation-derived enzyme sources, Dried Pineapple, Dried Lemon Peel, and Lactose.Adding a disclosed collagen peptide, marine collagen, gelatin, or hydrolyzed protein ingredient at a stated milligram amount would lift this from tier 1.Dried Seaweed Meal, Flaxseed, Dried Aspergillus Oryzae Fermentation Product, Dried Trichoderma Reesei Fermentation Solubles, Dried Rhizopus Oryzae Fermentation Product, Dried Pineapple, Dried Lemon Peel, Lactose.Keratin-relevant nutrients are present in the kelp matrix in principle. The brand narrative claims SeaMeal contributes 60 trace minerals, 12 vitamins, and 22 amino acids, which by composition would include some zinc, biotin, and sulfur amino acid contribution from the dried seaweed meal and from the flaxseed protein fraction.To reach tier 7-10 the brand would need to disclose biotin in micrograms per teaspoon, zinc in milligrams per teaspoon with a stated salt form, and ideally a sulfur donor (MSM, methionine) or silica source at a stated amount.60 trace minerals, 12 vitamins, 22 amino acids, digestive enzymes and flaxseed.The testing surface is mixed. Solid Gold operates a 'positive release' program described as 'samples are taken from the batch and sent to a lab for various analyses for pathogens such as salmonella,' which is a per-batch microbial-screen pathway.Pathogen-screen positive release is a safety floor, not a label-claim verification.Samples are taken from the batch and sent to a lab for various analyses for pathogens such as salmonella.Claim register is mostly disciplined and species-appropriate. The brand positions SeaMeal as a daily wellness food topper for dogs and cats and pairs the skin-and-coat lane with gut support and immune support rather than with disease-specific dermatology language.No SeaMeal-specific feline clinical study, published palatability study, or peer-reviewed kelp-supplementation trial in cats is cited.Can be helpful for dogs and cats suffering from dry, itchy skin.Daily-use design is one of the stronger lanes of this product. Format is a savory kelp-and-flaxseed powder food topper added to meals, which bypasses pill refusal and capsule format and works well for cats that resist chews. Every jar includes a 1 tsp scoop, which removes guesswork on serving size.No published feline palatability study is named.Add to 2 meals daily for the life of your pet. Every jar includes a 1 tsp scoop.Last reviewed: May 21, 2026Sources: Product page · Retailer listing · Regulatory filing11SG-SSolid Gold SeaMeal Daily Wellness Supplement PowderSolid Gold Pet · Powder · Core Beauty SystemSolid Gold SeaMeal is a sea-vegetable powder topper with useful enzyme and fatty-acid disclosure. Per teaspoon, it discloses omega-3 ALA 3.6 percent, omega-6 LA 1.0 percent, ome...Integumentary Biology FocusMade In USADose Disclosure LimitedNarrower Support Scope42.8/100Sparse Public Evidence
12Rank42.6/100Sparse Public Evidence12RankMLPowderThe Missing Link Feline Wellbeing Superfood Supplement Powder
The Missing Link (a W.F. Young / Absorbine brand) · Powder
PowderProprietary Blend42.6/100Sparse Public EvidenceThe Missing Link Feline Wellbeing is a cold-processed superfood powder with partial omega disclosure. Per 3/4 teaspoon, it provides omega-3 ALA 250 mg, omega-6 LA 100 mg, and taurine 400 mcg. The catch: the omega source is plant-based, many other active amounts are undisclosed, and the taurine amount is very small.
Best forOwners who want a NASC-certified superfood powder for skin, digestion, energy, and immune support, but not a full cat all-in-one.
Integumentary Biology Focus Every Dose DisclosedClean 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.
What's in it
- It includes omega-3 ALA 250 mg, omega-6 LA 100 mg, and taurine 400 mcg per 3/4 teaspoon.
- It uses a powder format with four weight-keyed scoop sizes and a 10-day ramp-up protocol.
- It is NASC certified, non-GMO, made in FDA-registered U.S. facilities, and widely distributed.
What's not in it
- It does not include marine EPA/DHA.
- It does not disclose per-serving amounts for kelp, yucca, zinc methionine complex, ground flaxseed, or B vitamins.
- It does not show public lot-specific COA lookup or a named third-party finished-product lab.
Label snapshot · proprietaryMulti-system superfood powder; kelp, yucca, zinc, B-vitamin doses undisclosedOmega-3 ALA 250 mg + Omega-6 LA 100 mg + Taurine 400 mcg per 3/4 tsp from flaxseed?Why this scoretap any criterion for evidence— —Why this scoreWhat's missingBrand's own wordsPer-serving disclosure is partial. The Guaranteed Analysis per 3/4 tsp (2.25 g) discloses three quantitative actives: Linolenic Acid (Omega-3) 250 mg minimum, Linoleic Acid (Omega-6) 100 mg minimum, and Taurine 400 mcg minimum, alongside Crude Protein, Crude Fat, Crude Fiber, and Moisture percentages.Several meaningful actives in the formula have no disclosed per-serving mg. Ground flaxseed (the headline lipid source) is not given a mg. Dried kelp (the brand's category signature ingredient) sits in the inactive panel with no mg.Linoleic Acid Omega 6 (min.) 100mg ... Linolenic Acid Omega 3 (min.) 250mg ... Taurine (min.) 400mcg.The formula is positioned across four wellness domains simultaneously rather than as a focused integumentary system. The brand sentence 'Supports soft skin and coat, sustained energy levels and healthy digestive and immune systems' surfaces skin and coat alongside three non-integumentary outcomes.Four of the six integumentary lanes this rubric scores most generously are absent or undocumented. There is no collagen lane (no marine or bovine collagen at any mg).Supports soft skin and coat, sustained energy levels and healthy digestive and immune systems.The barrier-lipid lane is built around ground flaxseed as the headline source, with Omega-3 ALA disclosed at 250 mg per 2.25 g and Omega-6 LA disclosed at 100 mg per 2.25 g. That ratio favors the parent Omega-3 in a category dominated by Omega-6-heavy chews, and the absolute ALA at 250 mg per 0.75 tsp is meaningful relative to the small cat serving size.The disclosure stops at the parent fatty-acid class.Linolenic Acid Omega 3 (min.) 250mg ... Linoleic Acid Omega 6 (min.) 100mg.Structural support is largely absent at the active-ingredient level. The formula contains no collagen at any disclosed mg (no marine, bovine, or chicken collagen on the label). There is no gelatin and no named amino acid contribution.A serious dermal matrix architecture for a cat skin and coat product would dose marine or bovine collagen at a disclosed per-serving mg, name a peptide molecular-weight specification, and pair it with complementary structural ingredients…Crude Protein (min.) 20%.The keratin and nail register is partially implied through the B-vitamin stack and the zinc methionine complex but is not matched by disclosed per-serving mg.A serious keratin and nail architecture would dose biotin in mcg, zinc in mg, and ideally add silica or a sulfur-donor pair such as methionine and cysteine at disclosed per-serving amounts.Zinc Methionine Complex, Taurine, Niacin (Vitamin B3), Pyridoxine Hydrochloride (Vitamin B6), Riboflavin (Vitamin B2), Thiamine Hydrochloride (Vitamin B1), Folic Acid, Vitamin B12 Supplement.Testing-transparency signals are mixed. On the positive side, the brand PDP and 1800PetMeds surface both display the NASC Certified badge, the brand declares Made in the USA at FDA-registered facilities, and the parent W.F. Young, Inc. holds an NASC Primary Supplier listing.To reach tier 7-8 the brand would need to name the Missing Link cat product line explicitly on the NASC supplier surface, publish a per-lot finished-product COA or a buyer-accessible batch-lookup tool, and name a third-party…Absorbine has been dedicated to horse care since 1892. Our extensive portfolio of horse care products includes Absorbine Veterinary Liniment for equine muscle and joint care, UltraShield equine fly control products, Hooflex hoof care products, and ShowSheen grooming products, as well as a complete portfolio of equine nutritional supplements.The claim register is largely disciplined and species-appropriate.Two friction points keep this below tier 9-10.Supports soft skin and coat, sustained energy levels and healthy digestive and immune systems.Format is a cold-processed powder mixed into food, with an improved yeast-based vegan natural flavor that the brand describes as 'savory, meaty or umami.' The four-band weight-keyed scoop sizing - 1/4 tsp for kittens up to 5 lbs, 1/2 tsp for cats 5-9 lbs, 3/4 tsp for cats 10-12 lbs, and 1 tsp for cats over 12 lbs - is more granular than the typical flat-serving feline chew…Two compliance frictions keep this below tier 9-10.For the first three days use a quarter of a full serving. The next three days give a half of a full serving. Next three days give three quarters of a full service. After 10 days move to a full suggested serving size.Last reviewed: May 21, 2026Sources: Product page · Regulatory filing · Retailer listing12MLThe Missing Link Feline Wellbeing Superfood Supplement PowderThe Missing Link (a W.F. Young / Absorbine brand) · PowderThe Missing Link Feline Wellbeing is a cold-processed superfood powder with partial omega disclosure. Per 3/4 teaspoon, it provides omega-3 ALA 250 mg, omega-6 LA 100 mg, and ta...NASC Quality SealMade In USADose Disclosure Limited42.6/100Sparse Public Evidence
How we scored 13 cat skin & coat supplements.
About this ranking.
Each product was scored against the same eight criteria: dose disclosure, integumentary system coverage, barrier lipid and hydration architecture, dermal matrix and collagen support, keratin and follicle nutrient logic, batch testing, claim discipline, 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 cat skin and coat supplement is built across all four integumentary lanes. Many products lean on omega-3 oil alone, biotin chews, or allergy and itch chews dressed up in skin and coat marketing. A smaller group is built across structural support, barrier lipids and hydration, keratin and follicle nutrition, and skin barrier resilience, immune comfort, and coat-cycle support. We mark those products with the Integumentary Biology Focus badge.
Cat-specific scoring notes. Cats do not convert plant-based ALA into EPA and DHA efficiently, so marine omega sources are treated as stronger evidence for skin-barrier lipid support than flaxseed-only omega claims. Cat supplements also fail differently from dog supplements: even a well-built chew or powder can lose practical value if a cat refuses the format. Cat-only formulas receive credit when dosing, format, flavor, and serving size are clearly built for feline use rather than scaled down from a dog-first product.
La Petite Labs makes Pet Gala, which is shown as a separate publisher benchmark and excluded from the numbered competitive ranking. Pet Gala is formulated for both dogs and cats. 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.
cat-skin-coat-scoring-dataset-2026.jsonReviewed13
Ranked12
Criteria8
Evidence sources84
Continue exploring
Frequently Asked Questions
How were the cat skin and coat supplements scored?
Each product was scored under a published 100-point rubric across eight criteria: dose disclosure, integumentary system coverage, barrier and hydration architecture, dermal matrix and collagen support, keratin and nail nutrient logic, batch testing, claim discipline, and daily usability.
Does La Petite Labs make a product shown on this page?
Yes. La Petite Labs publishes this report and makes Pet Gala. To avoid ranking its own product against competitors, Pet Gala is scored under the same rubric but shown separately as a publisher benchmark rather than included in the numbered ranking.
How did Pet Gala score?
Pet Gala scored 94.2/100 under this rubric. Its strengths and limitations are shown in the publisher spotlight, including the main roadmap item: finished-formula skin and coat evidence on Pet Gala itself.
Why is Pet Gala 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 dose-transparent, or supported by fewer public quality signals. Some lower-scoring products are still useful for a specific shopping need.
What does Integumentary Biology Focus mean on this page?
The Integumentary Biology Focus badge marks products built across multiple integumentary lanes — structural support, barrier lipids and hydration, keratin and follicle nutrition, and aging-immune balance — rather than relying on one ingredient class. Most products on the skin and coat shelf cover one lane only.
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.
Why are some products marked “adjacent” instead of “core”?
Adjacent products are shopper-relevant comparators that do not meet the strict multi-lane gate. Examples include single-lane omega oils, allergy and itch chews, hairball gels, and gut-skin probiotic products. They appear because buyers comparing skin and coat options will plausibly evaluate them, but they are not scored as full beauty systems.
