We are a professional peptide R&D and production factory in China, specializing in copper peptide, Retatrutide and various small-molecule active peptides. ✅ Purity ≥99%, HPLC detection, consistent batch quality ✅ Free samples for trial test, flexible customized packaging ✅ Complete COA, MSDS, test spectrum provided ✅ Short lead time for bulk orders, global logistics support We hope to become your stable long-term raw material supplier. Looking forward to your reply.