Certificates of Analysis
Anyone can claim purity. We publish it. Every batch we release is independently assayed by an accredited third-party laboratory before it ever reaches you — and the certificate for your exact batch is available on request.
- 1 Synthesis Each peptide is synthesized to a ≥99% purity specification under documented quality procedures.
- 2 Independent Assay Every batch is sent to an accredited third-party laboratory for HPLC (purity), mass spectrometry (identity / molecular weight), and endotoxin screening.
- 3 Batch-Matched COA The resulting Certificate of Analysis is matched to your specific lot number, so the document you receive describes the exact vial in your hands.
- 4 Published & Traceable Request your lot number to retrieve the full Certificate of Analysis for your batch. No guessing, no "trust us".
How to read a Certificate of Analysis
A COA is the lab's official record for a batch. The key fields: HPLC purity (the percentage of the target peptide vs. impurities — look for ≥99%); mass spectrometry (confirms the molecular weight matches the intended sequence, i.e. it is the right compound); and endotoxin / sterility results where applicable. The lot number on the COA should match the lot number on your vial.