Reference materials you can check, batch by batch.
Pepdor supplies peptide reference materials for laboratory and analytical research. What makes us different isn't a promise - it's the paper trail. Every batch carries an HPLC certificate of analysis, and every independent third-party test ever submitted lives in a public, append-only ledger anyone can read.
Every batch is documented, not just the good ones
Each batch ships with a Pepdor-commissioned RP-HPLC certificate of analysis, and every independent third-party report a buyer submits is published unedited in the public Test Ledger - pass or fail. The ledger is append-only: nothing is edited, nothing is removed.
We only claim what was tested
Purity is reported for the specific batch and method shown. LC-MS identity, endotoxin, and sterility appear only where that batch was actually tested for them; anything else is marked “Not tested” rather than implied. Materials are not produced under GMP and are not released as sterile or endotoxin-controlled unless a batch record says so.
Independent tests carry more weight than ours
A vendor's own COA is a starting point, not proof. We make it easy to send a vial to an independent lab and publish the result next to our own - even when the outside number is lower than our marketing. Buyers can submit a report with its public verification link at any time.
Built for people who read the COA
Pepdor is a chemical supplier serving qualified research buyers. There is no dosing guidance, no health claims, and nothing on this site is medical advice. The audience is laboratories and researchers who want a paper trail they can check for themselves.
Pepdor is a chemical supplier of research peptides intended solely for research, laboratory, or analytical use - not for human or veterinary use, and not medical, health, or usage advice. Questions? See Contact, the FAQ, or our terms and privacy policy.