Certificates of Analysis

Every batch we source is independently tested for identity, purity, and safety (HPLC, LC-MS, endotoxin, and residual solvent analysis) by our raw-material supplier, Aotai Peptide Biotechnology Co., Ltd. (Guangzhou, China), and, for select batches, by an independent U.S. laboratory (Freedom Diagnostics), before it reaches us. Select a product to view the lab report for its batch — reproduced here with attribution intact.