Why is everyone talking about copper peptides? Meet GHK Cu, the skin repairing, redness reducing hero inside our Repairing Serum. #SumaNurica #BiotechSkincare GHK Cu Repairing Serum 30ml SumaNurica Meet our Nonapeptide Niacinamide Rejuvenating Serum A vitamin rich, peptide powered blend that helps refine, hydrate, and brighten the look of skin. supports smoother looking texture helps balance excess oil promotes GHK Cu Repairing Serum 0.99fl. oz 30ml SumaNurica One of the questions we often receive about our products is: Why is the GHK Cu Repairing Serum stored in two part packaging? GHK Cu is an unstable ingredient that can slowly lose its effectiveness