Your copper peptide product should be this exact blue. If it isn't, you already have your answer. GHK Cu is blue because of coordination chemistry, not dye. The Cu ion at the center Peptides Solutions at Olympia Natural Copper Peptide Serum Booster GHK Cu (Copper Peptide) Argireline Leuphasyl (0.2% 3% 3%) Cream 30mL Valhalla Vitality Copper Peptide Serum for Dull & Mature Skin VALNCIA
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why is my ghk cu not blue Are Peptides coming off of the FDA Category 2 list? A legal breakdown – Holt Law