Is your pet's supplement dosed to work, or just marketing?
Pick an active ingredient, enter the amount printed on your product's label, and find out whether it is clinically dosed or fairy-dusted. Evidence grades and effective doses come straight from the research, not the brand's claims.
Graded by evidence, never by who pays usWhy "fairy dusting" is the pet supplement industry's favorite trick
Most pet supplements are not fake. They are underdosed. A joint chew can legally list "glucosamine, chondroitin, MSM, UC-II" on the front and contain a clinically meaningful amount of none of them. This is called fairy dusting: including a studied ingredient at a fraction of the dose the studies used, so the label looks impressive while the pill does little. The Reality Check exists to close that gap. You tell it the number on your label; it tells you what fraction of the effective dose that actually is, and what to look for instead.
Frequently asked questions
Where do the evidence grades come from?
From Petmaxxing's own category research and the veterinary literature it cites. "Strong" means multiple controlled trials support both the ingredient and a specific effective dose (for example UC-II collagen at 40mg/day in force-plate studies). "Moderate" means the evidence is mixed or comes mostly from smaller or human studies. We grade the ingredient and dose, never the brand.
My product passed. Does that mean it is the best one?
It means the dose is in the effective range, which is the biggest thing most products get wrong. Purity, form, third-party testing and price still matter. That is what our category guides rank, and each result links you to the top evidence-based pick.
Does this replace my vet?
No. It helps you shop smarter and have a better conversation with your vet. Always confirm doses and combinations with a veterinarian, especially for pets on medication or with a diagnosed condition.