GHK Cu Copper Tripeptide 1 CAS 89030 95 5 Manufacturer & Supplier in China Conscientia Industrial GHK Cu Copper Tripeptide 1 Research Reagent Dimeric copper peptide incorporated hydrogel for promoting diabetic wound healing Nature Communications Advanced Spectroscopy for Copper Peptide Research Buy GHK Cu Peptide 99%+ Purity GHK Cu for Research 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