Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Before and after begins with consistency. Our 10% GHK Cu formula is engineered for deep absorption to support scalp health and visible density. Meet GHK Cu, the copper peptide that regenerates and protects. It helps stimulate collagen, improves skin quality, supports hair growth, and fights inflammation for healthier, stronger skin.,