Lab results
Check any lot against the certificate it was released under. The lot number is printed on the vial label.
Look up a lot
Every vial is labelled with a lot number. Email that number to support@wolfpeptide.com and we will send the certificate of analysis that lot was released under, usually the same business day.
The certificate for the lot currently shipping is also linked on each product page.
How every lot is tested
A sample is drawn from each finished lot and sent to an independent laboratory. Identity is confirmed by mass spectrometry and purity by reversed-phase HPLC against a reference standard.
The lot is not released until the certificate is on file, and that certificate is what you see here — not a specification sheet, and not a result carried over from an earlier batch. If a lot does not clear the release threshold it does not ship. There is no second grade.
Reading a certificate of analysis
Four things are worth checking on any COA, ours or anyone else’s. The lot number on the certificate should match the vial in your hand. The assay date should be recent relative to the synthesis date. The method should be named, not just the result. And the laboratory that ran it should be identified, because a certificate with no laboratory on it is a self-report.
