Not certified either way, yet.
Kirkland Signature is Costco's own brand. Costco's page for one Kirkland Signature product (its shampoo) says it is animal cruelty free and 100% vegan, but Costco doesn't publish a brand-wide animal testing policy, and Kirkland Signature isn't certified by Leaping Bunny / Cruelty Free International or PETA.
🔍 parent company's testing policy is also unverified
Does Kirkland Signature test on animals?
I couldn't find an animal testing policy or certification for Kirkland Signature yet. The sources I checked are below.
- Vegan
- not yet confirmed
- Owner
- Costco Wholesale Corporation
who owns who
kinder swaps
sources
Cruelty-free
Costco (owner): its Kirkland Signature Shampoo page ("Animal cruelty free", one product only)
Vegan
No source found.
Owner
No source found.
Know of a source? Let me know.
Last updated 18 October 2026, checked against the source directory that day. Spotted something out of date? Let me know.