Finnrick protects the public by testing peptides and exposing supply chain failures. We've tested 7,164 samples from 205 vendors across 15 popular peptides. Our rankings help factor safety into your decisions. Read more →
Top Finnrick Ratings
1 May 2026
From the Finnrick Blog
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We’d Rather Buy the Future Than Wait For It
For a year, the American public has been asking Finnrick to test their peptides, building the largest real-world dataset of peptide demand ever assembled.
Policy update: free tests now require a batch ID
Free peptide test submissions now require a batch ID with photo evidence. Without batch IDs, published results can't be tied to a specific production run. Samples without batch IDs can still be tested through the private option or any paid add-on.
What We Believe In
We didn’t start Finnrick because we have an opinion about whether you should take peptides. We started Finnrick because people already are, and reliable, independent information about what’s actually in the vial has been too hard to get.
Free Testing
Finnrick will test your peptide samples for free: just ship it to us in Texas. We'll also source and test your choice of vendors.
Vendors
We have tested a total of 7,164 samples from 205 vendors, so you can make the most informed decisions.
Products
Our tests are covering 15 different peptides. Discover the whole list and find out the best-rated vendors.
Vendor Support Services for Peptide Distributors
Lead With Transparency
Do you retail peptides? Reach new audiences, demonstrate product integrity, and welcome customer scrutiny with confidence. Finnrick provides an independent testing platform for registered peptide vendors to make transparency a competitive advantage.
Certificate Verification
Verify a COA
Someone sent you a Finnrick PDF and you want to check if it's correct? They shouldn't have, but we got you. Learn what to look for in a Certificate of Analysis and verify a Finnrick COA.
Researcher Exclusive!!
Full Data Access
Register as a researcher for unlimited access to the Finnrick database.
Finnrick makes sovereign health safer with free peptide tests.
More people are taking their health into their own hands, seeking treatments for longevity, weight loss, injury recovery, and more. But buying peptides online is very risky: mislabeling, contamination, wrong dosages, and zero accountability.
Finnrick works at improving safety by testing samples for purity and dosage, and publishing everything openly. We force transparency on a chaotic, high-risk market, so people can better protect themselves.