GHK Copper Peptides: for Skin and Hair Beauty: Pickart PhD, Dr. Loren: 9780977185351: Books Amazon.ca Heard of the copper peptide everyone's talking about? Here's the quick breakdown: GHK Cu is a naturally occurring peptide in your body that binds with copper. As we age, levels drop and that's Copper Peptides: This Anti Aging Active Ingredient Increases Skin Collagen by 70% Vogue Arabia The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes GHK CU Crepey Skin Escape