2 weeks in on GHK Cu and the glow is REAL., Brighter complexion, More even skin tone, Less breakouts, Softer fine lines, Thicker, fuller hair, This is just the beginning. Consistency is Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care Morningstar Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare GHK Cu Peptide Before and After Results