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 Topical Cream GLOW Mix Peptide Therapy in Florida: BPC 157, TB 500 & GHK Cu Prescription & Medically Supervised Florida Surgery & Weight Loss 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