How we test

Purity you can check, not purity you're asked to trust. Here is what happens to every batch before it reaches you.

Independent, third-party analysis

Every batch is sent to an independent laboratory (Janoshik Analytical and Colmaric Analyticals) for identity and purity analysis by HPLC and LC-MS/MS. We do not grade our own work.

Published, searchable certificates

Each certificate is tied to a lot code printed on the vial.
Certificates are public and searchable on the verify page, before and after purchase.
We publish failures too: rejected batches are shown with their result and marked destroyed.

Traceability

The lot on your vial resolves to a single certificate and its chromatogram. Read the dominant peak and the measured purity against the reference, and judge the evidence yourself.

See it in action

Browse the open batch log, the certificate hub, or verify a lot code.