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All products sold on this website are intended strictly for laboratory and research purposes. They are not for human or animal consumption, use, or application in any form. By purchasing, the Buyer represents and warrants that they are a qualified researcher, laboratory, or institution acquiring these products solely for lawful, non-clinical research purposes, and that the products will not be introduced into the body of any human or animal.
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A Certificate of Analysis (COA) is the lab report documenting what's actually in a specific batch of peptide, and how it was verified. Two analytical methods do almost all of the work: HPLC (High-Performance Liquid Chromatography) for purity, and mass spectrometry for identity confirmation.
HPLC separates every compound in the sample by how it interacts with a chromatography column, producing a chromatogram — a graph of peaks. Purity is calculated as the main peptide peak's share of the total peak area: a 99% purity result means 99% of all detected material is the intended peptide, and roughly 1% is something else (a synthesis byproduct, a truncated sequence, residual solvent). Mass spectrometry independently confirms identity by comparing the observed molecular weight against the theoretical weight calculated from the peptide's amino acid sequence — a match confirms the right amino acids are present in the right order.
A proper COA should list the peptide's name and sequence, batch/lot number, purity percentage, the specific test methods used, and the issuing laboratory's credentials. ≥98% purity is generally considered the research-grade standard, appropriate for the reproducibility that laboratory and preclinical work requires.
Study-backed guides, dosing protocols, and the full research peptide collection — all in one place.