Lab tests
Every batch is analyzed before it ships. The certificate of analysis is what backs up the label.
What is a COA?
The certificate of analysis is the lab report for a specific batch. It states compound identity, the purity obtained and the method used to measure it, along with the batch number and analysis date. A COA without a batch number is useless: it cannot be tied to the vial in your hand.
HPLC: purity
High-performance liquid chromatography separates the compound from its impurities and quantifies what percentage of the content is the stated peptide. This is the measurement behind the ≥99% specification.
LC-MS: identity
Mass spectrometry confirms the measured molecular weight matches the theoretical weight of the peptide. Without this test, purity says nothing: you can have a 99% pure compound that is not the one you ordered.
Sterility and endotoxins
Microbiological screening and chemical contaminant analysis before the batch is released.
How to request the COA
It ships with the order. If you want it before buying, message us on WhatsApp with the compound you need and we send the current batch COA.