The Notable Benefits of Copper Peptides for the Body A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule GHK Cu Peptide Skin Cream Levers.Health