What Is GHK Cu? Discovery & Research Honest Peptide Viral claim says GHK Cu reset nearly 4,000 genes to a younger state and increased collagen production in a preclinical study. This refers to research on GHK Cu, a naturally occurring copper binding peptide that GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes 89030 95 5 GHK Cu Gly His Lys Cu Copper Tripeptide 1; Prezatide copper Food Derived TripeptideCopper Self Healing Hydrogel for Infected Wound Healing Biomaterials Research Copper Peptide Regenerating Serum for Glowing Skin and Hair