La Petite Labs · Research
Pet Supplement Statistics / 2026
Pet Supplement Statistics 2026
What’s actually happening inside the pet supplement aisle.
Original research on the ingredients, doses, lab testing, clinical evidence and expert claims behind today’s dog and cat supplements.
Based on 145 dog and cat supplement reviews and a separate audit of 56 brands. A May–July 2026 snapshot.
61%
of reviewed entries didn’t list the amount of every active ingredient.
89 of 145 product reviews
92%
had no public lab report or batch lookup.
133 of 145 product reviews
1 in 145
had a published clinical trial on the actual product being sold.
144 of 145 had none
What’s actually on the label?
More ingredients don’t necessarily mean more information.
61% of reviewed entries left out the amount of at least one active ingredient. For all-in-one supplements, it was 74%.
61%
89 of 145 product reviews
didn’t list the amount of every active ingredient.
74%
40 of 54 all-in-one reviews
of all-in-one reviewed entries didn’t list every amount.
One product we reviewed
39 active ingredients.
Zero amounts listed.
38 of its 39 active ingredients were grouped into 8 “proprietary blends,” which don’t say how much of each ingredient is inside. The remaining one was listed on its own, also with no amount.
38 in 8 proprietary blends
On its own · 1
What can shoppers actually verify?
“Made in the USA” was easy to find. Lab reports were not.
111
Said “Made in the USA” · of 145 reviews
12
Public lab report or batch lookup · of 145 reviews
For every reviewed entry with a public lab report or batch lookup, about nine said “Made in the USA.”
“Made in the USA” tells you where a product was made. A lab report tells you what’s actually in it.
A country-of-origin claim doesn’t replace a public lab report.
Was the product itself studied?
144 versus 1.
Of 145 product reviews, only one had a published clinical trial on the actual product being sold.
Research on an ingredient isn’t research on the product.
An ingredient can have published research behind it. That doesn’t mean the full formula — at the dose and in the form you’re buying — has ever been studied.
Who is the expert?
“Formulated by vets.” Which vets?
41%
23 of 56 brands
of brands had gaps in identifying the experts behind their products.
38%
21 of 56 brands
had no named vet, scientist or formulator recorded in the reviewed materials.
Examples from the reviewed materials: “Formulated by vets,” or a “team of veterinarians,” with no vet named. The 41% figure uses the report’s unnamed-experts flag; it includes absent expert disclosure and claims without a named expert linked to them.
The cat question
How cat-specific is the cat supplement aisle?
50%
6 of 12 product reviews
of cat skin-and-coat category entries were recorded as marketed to both cats and dogs.
31%
17 of 54 product reviews
of all cat-category reviewed entries were recorded as marketed to both cats and dogs.
Cat skin & coat stood out.
Half of cat skin-and-coat category entries were recorded as marketed to both cats and dogs, compared with about one in four in the other two cat categories.
Share marketed to both species
Cat skin & coat6 / 12
Other two cat categories11 / 42
The all-in-one effect
More in the formula. Less on the label.
All-in-one reviews · 40 of 54
74%
All other reviews · 49 of 91
54%
A 20-point gap.
All-in-one reviewed entries were about 1.4 times as likely as other supplement entries to leave out at least one ingredient amount.
The lab report gap
Most brands don’t show their lab work.
In a separate audit of 56 brands:
47of 56
brands had no public lab report or lookup.
9of 56
had a public lab report or lookup.
7of 56
had a report or lookup tied to a specific batch, so you can match it to what you bought.
The numbers at a glance
Nine findings.
61%
89 / 145
of reviewed entries didn’t list the amount of every active ingredient.
74%
40 / 54
of all-in-one reviewed entries didn’t list every amount.
92%
133 / 145
of reviewed entries had no public lab report or batch lookup.
>99%
144 / 145
of reviewed entries had no published clinical trial on the product itself.
77%
111 / 145
of reviewed entries said they were made in the USA.
41%
23 / 56
of brands had gaps in identifying the experts behind their products.
38%
21 / 56
of brands had no named vet, scientist or formulator recorded in the reviewed materials.
31%
17 / 54
of cat-category reviewed entries were recorded as marketed to both cats and dogs.
50%
6 / 12
of cat skin-and-coat category entries were recorded as marketed to both cats and dogs.
What we’re tracking next
The category is moving faster than the evidence around it.
Next, we’re tracking how the pet supplement aisle itself is changing.
01
The rise of pet longevity
Which ingredients are showing up in longevity formulas? How fast are NAD+ and healthy-aging ideas moving from human wellness into pet products? And how often is the product itself ever studied?
02
The cat supplement boom
How much of the growing cat supplement aisle is actually made for cats? Which benefits, ingredients and formats are showing up in cat products first?
03
The everything-supplement
How many benefits are brands packing into a single daily product? How many active ingredients do these formulas contain? And do ingredient amounts disappear from the label as the lists get longer?
04
From chews to powders, liquids and lickables
Soft chews have dominated the category. We’re tracking what comes next — and whether format changes what ingredients, doses and claims brands can deliver.
05
The human-to-pet pipeline
Mushrooms. Collagen. NAD+ precursors. Postbiotics. Adaptogens. Cognitive ingredients. We’re tracking which human wellness trends are crossing into pet supplements, how fast they spread and what evidence comes with them.
06
What are pet supplements actually for?
Joint health once defined much of the category. Today’s products increasingly target digestion, cognition, calming, immunity, skin, longevity, hydration and whole-body wellness. We’re mapping how the benefit landscape changes over time.
07
The price of complexity
Do formulas with more ingredients cost more? Does paying more get you every ingredient amount, a published lab report or research on the product itself? We intend to find out.
08
Dog versus cat
Which ingredients, claims, formats and price points differ by species? And where is the industry still repurposing the same products across both?
The data
Use the data.
Every number on this page comes from La Petite Labs Research’s 2026 review of dog and cat supplements and separate brand audit.
The download includes every reviewed entry in this snapshot, what we checked for, what we found and where we found it.
Download
Each product-review row notes the category, species and review date, so you can check any number yourself. The data dictionary explains each column and how the figures are counted.
Please credit La Petite Labs Research when using the data. See the data dictionary for source terms.
How to cite this research
Cite the numbers. Check the methodology.
Suggested citation
La Petite Labs Research. “Pet Supplement Statistics 2026.” La Petite Labs, 2026.
Quoting a single number
Include the count behind it, so readers know what it’s based on. For example:
“According to La Petite Labs Research, 61% of dog and cat supplement entries it reviewed in 2026 didn’t list the amount of every active ingredient (89 of 145 product reviews).”
About the research
La Petite Labs Research studies the products, claims, ingredients and evidence shaping the pet supplement category.
- Product reviews
- 145 reviews across six dog and cat categories, covering 128 distinct product URLs (some appear in more than one category)
- Reviewed
- Product record dates: May 19–July 4, 2026. Category reports first reviewed May 20–22, with source records updated through July 4.
- Brand audit
- 56 pet supplement brands, checked through July 3, 2026
- Scope
- A snapshot of what U.S. shoppers see, not every product on the market
We counted only what a shopper could find. Anything a brand keeps private — unpublished lab results, studies or the vets it works with — isn’t reflected here.
Product figures count category-level reviews, so a product appearing in more than one category can be counted more than once. Brand figures use a separate denominator. The cat skin-and-coat category includes one dog-labelled fish-oil benchmark; cross-species counts require both cat and dog in the source record. Lab-report access includes public reports and lot-number lookups, which may require the number on a purchased bottle. These are historical observations, not a live assessment of a brand’s current website.
Source reports
These findings pool category-level review records from six Industry Reports and a separate brand audit. We counted the recorded public-disclosure fields, excluded La Petite Labs benchmarks, and divided each count by its matching review population. Displayed percentages are rounded to whole numbers.
- Best Cat All-in-One Supplements 2026
- Best Cat Longevity Supplements 2026
- Best Cat Skin & Coat Supplements 2026
- Best Dog All-in-One Supplements 2026
- Best Dog Skin & Coat Supplements 2026
- Best Dog Longevity Supplements 2026
- Pet Supplement Brand Transparency Report 2026
The downloads preserve the historical snapshot, with original source URLs and review dates for each record. Individual reports may have newer data. The data dictionary explains the fields, counting rules and known source-data limitations.
Publisher disclosure
La Petite Labs Research is published by La Petite Labs, which makes pet supplements. Our own products aren’t counted in any number on this page.
We’re not an independent certifier, and this research doesn’t judge whether any product is safe or effective.
Press contact
Amanda Sterling
Questions about the research, methodology or underlying data are welcome.
