Every peptide store says it tests. The only part of that you can check is the paperwork, so this page is about the paperwork: who produced it, what it measures, what it does not cover, and how to get the certificate for the lot printed on your own vial.
Every certificate on this site was produced by Janoshik Lab or Freedom Diagnostics — third-party analytical labs. We publish their reports; we do not write them.
Identity and purity by HPLC, with mass spectrometry confirming the compound is what the label says, plus the peptide mass measured in the vial. Blends are broken out per component instead of a single purity number.
10 certificates are published in full on the lab results page — the original report image, not a number retyped into a badge.
Send your order number and the lot code on the label and we will return the certificate we hold for it — or tell you plainly that we do not have one yet.
[email protected]What we will not claim: that every product listed in the shop already has a published certificate, or that a report on this site is matched to the vial you receive. Neither is true today. The catalogue is larger than the report set, some published reports were run on a different vial size than the one now stocked, and reports go up as the labs send them. Testing covers identity, purity and content — not sterility and not endotoxin.
Vials travel lyophilised at ambient temperature. That is the stable form — a parcel that arrives warm has not automatically spoiled, so check the seal and the cake rather than the courier's route.
Inspect the stopper and crimp before anything else. Sealed lyophilised vials keep cool, dark and dry; refrigerate for longer holds and freeze for long-term storage.
Refrigerate, keep it out of the light, avoid repeated freeze-thaw cycles, and work to the stability window reported for that specific compound.
General laboratory handling information only. Nothing here is dosing, medical or veterinary advice, and every compound sold by Frost Bio is for in vitro research use.