Neurogan Health Copper Peptide GHK CU , 120 mcg, 60 Tablets, 0.52 oz (15 g) eBay GHK Cu Face Serum 1200MG Lab Tested & High Potency Neurogan Health GHK Cu may be trending, but it's nothing new to us. We have been using GHK Cu (our Copper Peptide Complex) for over 15+ years post treatment and in your dialy routine. #GHKCu #CopperPeptides # GHK Cu 50 mg Copper Peptide Research Grade PRG GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Copper Peptide Serum (GHK Cu) Nardo's Natural Private Label