Copper peptide is a broad label, but the most studied one in cosmetic use is GHK-Cu, also called copper tripeptide-1, and it shows up in many high-end formulas for skin quality
Smith MT, Guyton KZ, Gibbons CF, Fritz JM, Portier CJ, Rusyn I, DeMarini DM, Caldwell JC, Kavlock RJ, Lambert PF, Hecht SS, Bucher JR, Stewart BW, Baan RA, Cogliano VJ, Straif K
PMC 2922724
2013CB834701), the Research Grants Council of Hong Kong (604711, 604913, HKUST2/CRF/10 and N_HKUST620/11) and the University Grants Committee of Hong Kong (AoE/P-03/08)
For more on multi-peptide research designs, see our peptide research stacks overview
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