GHK CU Crepey Skin Escape Platinum Skin Care GHK Cu Copper Peptide Face Cream Anti Wrinkle, Anti Aging Repair & Firming PeptideLabz Peptide Labz 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 GHK Cu (75mg) Alpha BioMed
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