GHK Cu Peptide: What It Does for Body Composition and Metabolic Health The hype is real. Ghk Cu aka the copper beauty peptide TOSOWOONG Copper Peptide 12 Cream, 99% Purity of Copper Tripeptide 1, GHK Cu, 12 Multi Peptide Male Hair Restoration Before & After with PRF and GHK Cu Copper Peptide (GHK Cu) 2% Recovery Serum Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference