GHK Cu Copper Peptide 0.5% (topical foam) Shell Medical Copper peptide GHK Cu Wikipedia GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true?, Copper peptide, known as GHK Cu, has a growing body of peer Most people think skincare works at the surface level. But healthy skin function starts much deeper than a temporary glow. GHK Cu is a naturally occurring copper binding tripeptide that is already found GHK Cu Peptide: Turn Back the Clock Naturally Calibrate Hydration