A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend Neurogan + Health GHK CU Copper Peptide 120 MCG Tablets PrettyStick Reddit asked questions. Here are answers. GHK Cu isn't newit's just not heavily marketed for hair (yet). Dr. Loren Pickart discovered it in the 70s. Decades of clinical research. Solid mechanism. We screwed How much GHK Cu should I inject daily? Neurogan GHK Cu Copper Peptide Face Cream 4% Peptides for Skin Firmness & Deep Hydration Daily Facial Moisturizer with 2400 MG GHK Cu 2oz Buy Now with Express International Delivery GoSupps.com