The Benefits & Risks of GHK Cu (WATCH BEFORE TAKING) GHK Cu (Copper Peptide) Argireline Leuphasyl (0.2% 3% 3%) Cream 30mL Valhalla Vitality The research on GHK Cu goes back over 40 years a scientist dedicated his entire career to it. Your body already makes it. You just make about 60% less of it by Copper peptide questions we get asked all the time How often should you use it? Do you need to avoid the sun? If you're new, start once daily (evenings are great), GHK Cu Injectable Team Wellcore