Certificates of Analysis
Our products are independently tested by third-party laboratories. Additional product COAs will be posted here as they're returned from the lab.
How We Test Every Batch
Every lot of every compound goes through an independent multi-step verification process before it ships.
HPLC Purity
High-Performance Liquid Chromatography separates the peptide from any impurities and measures purity to ±0.01%. Our pass threshold is 99%.
Mass Spectrometry (MS)
ESI-MS confirms the exact molecular weight matches the published sequence. Catches anything HPLC misses — wrong peptide, wrong fragment, contamination.
Net Peptide Content
HPLC quantitation against a reference standard verifies the actual mg of peptide in each vial. Confirms the label claim — what's on the label is what's in the vial.
COA Issued
Independent lab signs the Certificate of Analysis with all results. Only after we receive the signed COA do we release that batch for sale.
Updated Per Batch
Each new lot we receive runs through the same process and gets its own dated Certificate of Analysis. Fresh COAs are posted here as new batches arrive — so you can verify the exact lot shipped to you.
COAs are updated regularly as new batches are tested. If you need a COA for a specific batch, please contact us with your order number and we'll provide it promptly.