A research peptide is only worth what you can prove about it. Here is every check a batch passes before it goes on sale — and the paperwork you receive with it.
The measured molecular mass must match the theoretical mass of the stated sequence. Any deviation, however small, fails the batch.
Measured by reverse-phase HPLC. Acceptance is 98% minimum; most of the catalog sits above 99%. The batch's actual figure goes on the certificate.
Analyses are run by third-party laboratories with no link to production. The certificate states the laboratory, the date, the method and the batch number.
The peptide is lyophilized and sealed in a vial under controlled atmosphere.
Every vial carries its batch number: one certificate of analysis per batch, traceable at any time.
Stored at -20 °C, protected from light. Heat-sensitive compounds ship between 2 and 8 °C, with cold packs and reinforced insulation.
| Criterion | Method | Threshold |
|---|---|---|
| Molecular identity | Mass spectrometry | Mass matches theory |
| Chromatographic purity | Reverse-phase HPLC | ≥ 98% |
| Appearance | Visual inspection | Uniform powder, intact vial |
| Traceability | Batch numbering | One certificate per batch |
Every product presented on this site is intended for laboratory research use only. Not for human or animal consumption.
Laboratory, date, method, batch number: everything is on the certificate of analysis.
Researcher verification
PurePeptide supplies research compounds strictly for in-vitro laboratory / research use — not for human or veterinary consumption. By entering you confirm you are at least 21 and agree to our terms & conditions.