Parents & teen athletes: not everything trending on social media is safe. Copper peptides like GHK Cu are being promoted for skin health, but these products are unregulated and not FDA approved, which Liposomal Glutathione (NuMedica) Boulevard Pharmacy GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true?, Copper peptide, known as GHK Cu, has a growing body of peer 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK Liposomal Glutathione, NutriDyn Natural Healthy Concepts