Glutathione for the skin Paula's Choice GHK Cu Copper Peptide Cosmetic Grade Copper Tripeptide 1 Alibaba.com: GHK Cu Peptides Cosmetic Grade, Fast Delivery, Skin Care Powder Serum : Connect with verified suppliers offering CE, BV, ISO certified products for bulk orders. Copper Peptide Serum for Dull & Mature Skin VALNCIA 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
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glutathione benefits and side effects 1% GHK-CU solution: is this applied directly on skin or diluted further? : r/DIYaesthetics