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 High quality blue color cosmetic ingredient GHK CU,Copper peptide Ghk Cu Peptides Hair Before And After week 3 of using GHK Cu peptide pin. If I take a photo with the same lighting? How much of a difference do you think there will be? #ghkcu #peptide #look #looksmaxing #glowup