GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health The Benefits & Risks of GHK Cu (WATCH BEFORE TAKING) GHK Cu peptide is the ultimate tool of biohacking your skin. Injectable GHK Cu peptide works as a repair signal inside your skin. And when the skin functions better, the visible effects follow: Reduced 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