Lab standards

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

Who tests our peptides

Kits Peptides sends lots to independent third-party laboratories for HPLC purity and mass-spectrometry identity analysis. Published certificates currently come from Krause Analytical, BT Labs, and Freedom Diagnostics. None of those labs are owned by or affiliated with Kits Peptides. The certificate for any given lot names the laboratory that ran it, so the lab on the PDF matches the vial you received.

Independent testing

We publish the certificate of analysis on the lab results page when a lot is tested, including purity and measured mass where the lab reported them.

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. When that lot has a published certificate, it is the one for the material you received. Untested lots stay off the library until results land.