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 If youre playing with raw GHK Cu, heres the secret that makes it actually work on your skin: mix it with hyaluronic acid. , Not microneedling, not fancy devices just a clean HA serum as the GHK Cu Peptide: Turn Back the Clock Naturally Calibrate Hydration Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms Expression and Purification of Recombinant GHK Tripeptides Are Able to Protect against Acute Cardiotoxicity from Exposure to Waterborne Copper in Zebrafish GHK Cu Peptide Benefits (And a Few Risks) Explained