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Principles

Neutral and transparent

Every kind of test result is entered the same way, and partnerships or ads never shape results or their order.

A small white dog rests its chin on its owner's knee as the owner checks a phone
Any kind of test
Blood tests, saliva or hair tests, elimination diets, a vet's opinion, or your own suspicion — choose the evidence type and enter it the same way.
Reasons included
See which ingredient matches which allergen, and whether it's direct, an estimated cross-reaction, or an unspecified animal protein.
Fewest overlaps first, regardless of partnerships
Lists are ordered by overlap alone. Partnerships and ads never change the order.
Warnings are always free
Overlap warnings appear right away — never behind ads or payments.