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 China Copper Tripeptide 1 GHK Cu 89030 95 5,Buy Copper Tripeptide 1 GHK Cu 89030 95 5 Online china sinoway.com GHK Cu GHK Cu Copper Tripeptide 1 CAS 89030 95 5 Manufacturer & Supplier in China Conscientia Industrial
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