GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health GHK Cu 50mg 5 Vials Us Chem Labs 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 If you think GHK Cu is just an expensive skin cream, we need to talk. The truth that 99% of people, and even many doctors, overlook is that this copper peptide is