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 50 mg Copper Peptide Research Grade PRG GHK Cu Buy GHK Cu Exceptional 99%+ Purity Third Party COA Included
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols