Most people think GHK Cu is just a beauty peptide. But look at this Same person. Same lighting. Real skin change. GHK Cu works by activating repair genes in the body helping with GHK Cu: The Regenerative Peptide for Skin, Hair, and Healing Pulse & Remedy Quantitation of Copper Tripeptide in Cosmetics via Fabric Phase Sorptive Extraction Combined with Zwitterionic Hydrophilic Interaction Liquid Chromatography and UV Vis Detection The naturally occurring peptide GHK reverses age related fibrosis by modulating myofibroblast function He Aging Pathobiology and Therapeutics University of Washington Study: Natural Molecule Counters Sleep Deprivation's Impact on Learning and Memory NMN