GHK Copper Peptide GHK Cu Tripeptide 1 Ghk Cu Etsy Wholesale GHK Cu Serum 1 15 Gallons Private Label Bulk Serums Derma ProLab InfiniWell, GHK CU, 30 ml Before you decide to begin using the copper peptide, GHK Cu, be aware it stings and leaves behind big, red welts that then leave a lovely bruise. In order to reap the 'glow' GHK Cu is the compound your body made at 25 and quietly stopped making. Most people find it in overpriced serums. Few understand what it actually does, or what happens when you're not