The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend Skin can change when biology is supported, GHK Cu is a naturally occurring copper binding peptide thats been studied for its role in: Supporting collagen and elastin production, Improving skin GHK Cu suppressed the activation of the p38 MAPK signaling pathway in Download Scientific Diagram GHK Cu is a powerful copper peptide that supports collagen production, skin and hair health, and tissue repair. It may help reduce fine lines, improve elasticity, and promote faster healing. Want to learn Transform Your Skin with GHK Cu Benefits