A certificate of analysis is not a marketing asset. It is the only thing that tells you what is actually in the vial. We publish one for every lot we release and keep the raw chromatograms on file.
Find the lot number printed on your vial label, match it to the list below, and download the full report — including the independent testing laboratory, the date of analysis, and the methods used.
All testing performed by ILS Laboratories, San Diego, CA — an independent facility operating under an ISO/IEC 17025 quality management system. Each certificate can be verified directly with the lab using the access code printed on it.
A certificate is only useful if you know which figures matter. These are the fields worth checking before you accept any lot — from us or from anyone else.
Must match the number printed on your vial. A certificate that does not name your specific lot tells you nothing about the vial in your hand.
The percentage of the target peptide relative to all peptide-related peaks, measured by RP-HPLC area normalization at 214 nm. Our lab specification floor is 95.0%.
Confirms the material is what the label says, by comparing chromatographic retention time against a reference standard. Purity without identity is meaningless.
The actual measured mass in the vial, reported against the labelled content. This is how you confirm a vial is filled to specification.
Included on Full QC Panel lots. Elemental impurities by ICP-MS, sterility by PCR, and endotoxin by USP <85> kinetic chromogenic method.
Each certificate carries an access code that can be checked against the testing laboratory's own portal, independently of us.
The following catalog items do not yet have a certificate posted here. Current lots are either in testing or awaiting release. Request a certificate by email and we will send it if one is on file.