GHK Cu Peptide: Beginner's Guide to Potential Benefits GHK Cu Peptide Dosage How to Use Copper Peptides, Injections Neurogan Health GHK Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy A lot of people asked how I use GHK Cu (copper peptide) with a pen device, so here's a quick tutorial showing exactly how I do it. In this video I show how How to draw up and inject the Peptide GHK cu! This peptide is for Skin, Hair, Nails, Decreased Inflammation, and Anti aging! It is known for skin tightening and giving you a glow! , This video is for