GHK Cu is getting a lot of attention right now, and for good reason. This is not just a skin peptide. It's a copper binding tripeptide with documented effects on gene expression, collagen synthesis, GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms GHK Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care Can You Mix Retatrutide With GHK Cu? Risks and UK Guidance Bolt Pharmacy GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack?