The naturally occurring peptide GHK reverses age related fibrosis by modulating myofibroblast function He Aging Pathobiology and Therapeutics Copper Peptide (GHK Cu): Clinical Uses, Stability & Compounding Tips GHK Cu is a powerful copper peptide that supports collagen production, skin and hair health, and tissue repair. It may help reduce fine lines, improve elasticity, and promote faster healing. Want to learn Protective effects of GHK Cu in bleomycin induced pulmonary fibrosis via anti oxidative stress and anti inflammation pathways ScienceDirect By age 30, your skin produces about 25% less collagen. By 40, that number can reach 40%. This decline affects more than just how your skin looks. It changes how it heals,