Lab standards

Transparency is the standard we hold ourselves to. Here is how we test each lot and publish the results.

Independent testing

We send each lot to an independent third-party peptide-testing lab and publish the resulting certificate of analysis on our lab results page as testing completes, with a link to the lab's own verification portal so you can confirm any lot yourself.

What we measure

• Purity: by HPLC, reported as a percentage of the target compound.
• Identity: by mass spectrometry, confirming the molecule matches the label.
• Mass: measured content per vial versus the label claim.

Per-lot certificates

Each order records the exact lot that filled it, so once a lot's certificate is published it's the one for the material you received. Certificates for current lots are being finalized and will appear on the lab results page.