why is my ghk-cu not blue Your copper peptide product should be this exact blue. If it isn't, you already have your answer. because of coordination chemistry, dye. The Cu²⁺ ion at the center RK3645 Injecting BPC-157 Peptide For Connection Size:1" PRV1.00-DU-IPS-C-LL Double Union Threaded Female Inlet and Outlet, Metal Cage (Cap)
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