GHK Cu is a copper peptide that plays a role in tissue repair and collagen synthesis. The result: improved texture, firmness, and overall skin quality. GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes GHK Cu (Copper Peptide) is a naturally occurring peptide in the body that binds with copper to support cell repair and renewal. As we age, our levels decrease and thats where supplementation or The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Is GLOW Safe? Understanding Multi Peptide Stacks Revolution Health & Wellness