Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms What is GHK Cu and Why is Everyone Talking About It? GHK Cu (Copper Peptide) is a powerful, naturally occurring compound in the body that plays a key role in skin health GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline