At Peptide Lab we believe that transparency is a fundamental requirement, not an add-on. Every compound in the catalog is sent for testing at anindependent laboratory — Janoshik Analytical, one of the world's leading testing laboratories for research materials — and receives a Certificate of Analysis (COA) that verifies the compound's identity and its purity percentage.
What does a Certificate of Analysis (COA) show?
Every COA includes the compound's identity (verified by mass spectrometry), the purity percentage (by HPLC testing), the test date, anda unique verification key — so that anyone can verify the result directly with the laboratory on the site janoshik.com/verify. For a detailed explanation of what a COA tests and how to read it, see the peptide-buying guide.
Our Certificates of Analysis
Click any certificate to enlarge, or a product name to go to its page:
To protect the supply chain, only the supplier/manufacturer details have been hidden; the test data, purity percentage, and verification key are original and unaltered. All products are for research use only.
