PetScored
Engraved illustration of a supplement dropper bottle
Supplement rubric50 products scoredLast reviewed June 2026

Pet supplements, scored on evidence and dose.

The supplement aisle sells you ingredient names and hopes you stop there. We score the two things that actually decide whether a supplement earns its claim: does the main active have real evidence behind it, and does a daily serving deliver the dose that was actually studied. A best-selling joint chew can be beautifully made and still land mid-pack because its headline ingredient is thinly evidenced, and a proprietary blend that hides its doses drops to Limited. 50 scored so far.

Browse & filter all 50Read the supplement rubricCategory roadmap

How 50 supplements scored

Average 7.0 / 10
2Strong18Good18Mixed12Limited

The same bands, spelled out product by product and next to every food and treat we score: the tier list.

By type

Browse by what you are treating.

Best-of collections

Curated cuts across the catalog.

Head-to-head

Compare two supplements, side by side.

All supplement comparisons ›

All scorecards, ranked

Every supplement we've scored, best to worst.

Supplement rubricPartially verified data

What we refuse, and what we hold

We do not score everything in the aisle.

We refuse to score products sold with explicit disease treatment, cure, or prevention claims (an unapproved drug claim, not a wellness product), prescription products, and actives whose legal status or species safety is unsettled, such as CBD. We hold a product out of scoring when its headline active is not yet in our cited evidence library - we add a sourced library entry before we score a product that leads with it, rather than guess a tier.

Scores are our opinion under a published rubric, not veterinary advice. We score the evidence and the disclosed dose, not whether a product will help an individual pet. Dosing and use are decisions for you and your veterinarian; see the medical disclaimer.