Before and after begins with consistency. Our 10% GHK Cu formula is engineered for deep absorption to support scalp health and visible density. GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Advanced GHK Cu Face Cream 2400mg 4% Firmer Skin Neurogan Neurogan Health 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 GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B