GHK Cu: The Peptide for Regeneration This powerful copper peptide supports collagen production, accelerates wound healing, and promotes healthier, more youthful skin. Whether you're recovering from injury, managing inflammation, or just 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 Protect & Regenerate Annular GHK CU GHKCu (glycyl L histidyl L lysine copper) is a naturally occurring copper peptide found in the human body, particularly in plasma, saliva, and urine. It plays a key role in skin regeneration by promoting