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 Glow from within with GHK Cu Copper Peptide , This powerhouse peptide supports collagen production, skin repair, and hair follicle health, helping improve skin firmness, radiance, and support Felicite Did you know GHK Cu is one of the most studied peptides for skin health and tissue repair? This copper peptide has been explored for its potential to: Boost Transform Your Skin with GHK Cu Benefits