We don't ask you to trust a label. Every lot is independently assayed for purity and identity, and the raw data is published to your account before it ships.
Each analysis runs on a sealed sample from the same lot you receive — nothing is inferred from a previous batch.
Quantitative purity by RP-HPLC with UV detection at 220nm — the percentage on your certificate.
LC-MS confirms molecular identity against the theoretical mass. The right molecule, verified.
Nitrogen/amino-acid analysis reports the true peptide fraction, separate from salts and water.
Limulus amebocyte lysate screening flags bacterial endotoxin before a lot is ever released.
Visual and reconstitution checks confirm a clean, fully-soluble lyophilized powder.
Trace elemental screening keeps residual metals within reference-standard limits.
A retention sample and full raw data are archived for every lot, traceable years later.
Chromatograms and mass spectra for any lot are available to verified account holders.
Open COA lookup →Peptides are produced by solid-phase synthesis and purified to reference-standard grade.
A sealed sample from every lot is sent to a third-party lab — never tested in-house alone.
The signed COA with HPLC and MS data is published to your account before the lot goes live.
Vials are argon-flushed, sealed, and shipped cold-chain with tracking within 24 hours.
Every certificate carries the three numbers that matter — tied to the exact lot in your hands, not a marketing figure.
