Every lot is assayed by an independent laboratory before it reaches the catalog purity by reverse-phase HPLC, identity by mass spectrometry, and a unique lot ID linked to its certificate.
Purity quantified against reference standards the headline number on every certificate.
Molecular identity confirmed by mass-to-charge analysis the compound is what the label claims.
The actual peptide mass per vial so your dosing math starts from a real number, not a label.
Screened for bacterial endotoxins to a defined threshold on every lot.
Visual inspection of the lyophilate and reconstitution behavior before the lot is released.
Trace elemental contaminants screened against safe limits.
Each batch carries a unique lot ID linked to its COA — pull the exact paperwork for the exact vial.
Produced to a defined specification and lyophilized to a shelf-stable powder sealed against light and moisture.
A sample is sent to an independent laboratory for HPLC purity and mass-spec identity. We don’t grade our own work.
The actual peptide mass per vial so your dosing math starts from a real number, not a label.
Vials are sealed and shipped discreetly, and the matching certificate is published in your account.
NEWSLETTER
Stay updated with the latest research releases, new peptide availability, quality testing updates, and exclusive laboratory offers from Onyx Research.