GHK Cu Facial Serum Empower Pharmacy GHK Cu 50 mg Copper Peptide Research Grade PRG GHK CU Cosmetic for Healthy Skin Aging and Wrinkle Support Pure Prescriptions What volume of sterile, bacteriostatic water should be used to reconstitute a 50mg vial of GHK Cu (Glycyl Histidyl Lysine Copper) peptide for cosmetic or dermatological use? GHK Cu Eden Health Club The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds,