GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B GHK Cu (Copper Peptide) is a naturally occurring peptide in the body that binds with copper to support cell repair and renewal. As we age, our levels decrease and thats where supplementation or GHK Cu Revival Clinic Best GHK Cu Peptide Cream Texas InjectCo Aesthetics Amazon.com : Truth Guy GHK CU Anti Aging Copper Peptide Serum for Skin & Hair Growth, with Carbon 60 for Fuller Hair, Beard and Lashes Boost Hair Growth & Reduce Aging Effect One