GHK Cu: The Peptide That Supports Healthy Aging GHK Cu (copper peptide) is naturally occurring in the body and plays a role in supporting skin health, collagen production, and tissue repair. As GHK Cu Copper Peptide & Methylene Blue Tallow Balm For Face And Body AzulBotanicals Advanced GHK Cu Face Cream 2400mg 4% Firmer Skin Neurogan Neurogan Health 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