Lab reports

Every certificate, in the open.

Independent test results published by the brands on this marketplace. Search a compound, compare brands and open the original certificate, then check it against what you receive.

0reports on file
0brands covered
–most recent test
0%0 of 1,172 listings tested
Reading a certificate

What to check on every report

Four things, in this order. Testing 101 goes deeper.

Testing 101 →
  1. IdentityThe compound named on the certificate is the one on the label.
  2. PurityHPLC purity. Research-grade peptides usually report 98 to 99%+.
  3. ContentMeasured mg per vial against the strength printed on the label.
  4. VerifyA recent date and a verification key you can check with the lab.
Usually coveredHPLC purity & contentConfirms the right peptide is in the vial, how pure it is and how many mg it holds.How to read an HPLC result →Rarely coveredEndotoxins (LAL)Brand reports seldom include endotoxin testing. The community runs it on real orders.Why endotoxins matter →PeriodicTFA salt (NMR F-19)Checks whether a cheaper TFA salt form was used. Worth a spot check every few batches.Reading NMR F-19 →

Reports are supplied by the brands for a specific batch: a strong starting point, not a guarantee for the vial you receive. Testing 101 explains why buyers still run their own third-party tests.

Listings without a public report yet (1172)

We can request the batch COA from the brand before you order. Ask us →

For research use only. Not for human consumption. Nothing on this site is medical advice. Brands are independent vendors; EU Peptide Marketplace acts as an escrow intermediary. See our Terms and Research Use Disclaimer.

Certificates of analysis from UK and EU brands

This library collects the certificates of analysis (COAs) that listed brands supply for their products. Each entry names the lab, the compound and strength tested, the test date and the purity figure the certificate reports, and links back to the listing it covers.

Many UK and EU brands send samples to labs such as Janoshik and publish the results on their own sites. We add a certificate here once it can be matched to a listing on this marketplace. A certificate documents the sample that was tested; it is not a guarantee about later batches. Our guide to reading a peptide COA explains what to check.