Our Testing Process
Every peptide we sell is manufactured under strict quality-control protocols and independently tested by third-party laboratories before it's listed for sale. We don't rely on a manufacturer's internal paperwork alone — each batch is verified against our own purity standard prior to release.
What Gets Tested
| Test | Method | What It Confirms |
|---|---|---|
| Purity | HPLC (High-Performance Liquid Chromatography) | Purity of ≥99% for the labeled compound |
| Identity | Mass Spectrometry (MS) | The vial contains the correct peptide sequence |
| Sterility | Endotoxin & bioburden testing | Product is free of bacterial contamination for research handling |
| Stability | Lyophilization & storage validation | Peptide remains stable for up to 24 months when stored correctly |
Requesting a Certificate of Analysis
A batch-specific Certificate of Analysis (COA) is available on request for any product in our catalog. To request one, email us with the product name and, if you have it, your order number:
Research Use Only
Independent testing confirms purity and identity — it does not change the intended use of these products. All compounds sold by BioNexa Peptides are strictly for laboratory and in-vitro research use, and are not intended for human or animal consumption, diagnosis, treatment, cure, or prevention of any disease. See our Legal page for full terms.