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What a Blend-Specific COA Should Include Exact BPC-157 chemical form and sequence Exact TB-500 sequence, with N-terminal acetylation declared Confirmation that TB-500 is not full thymosin beta-4 Finished-product batch number Observed mass for each component Component-specific quantitative assay Measured BPC-157 to TB-500 ratio Raw chromatogram with identifiable peaks Related-substance or impurity results Counterion information where relevant Laboratory identity and report number Clear statement of tests not performed Why 99% Purity Is Not Enough A single chromatographic percentage may describe only one peak or one component

International Journal of Toxicology , 36(3_suppl), 5S-30S

Zhang, Z., & Wang, C

What Is the Glow Peptide Stack