GHK Cu Peptides Benefits for Anti Aging Skin Rejuvenation How to Use With Micro Infusion Copper Peptides for Skin Copper Peptides for Face PLU Labs Copper Peptide Regenerating Serum for Glowing Skin and Hair 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 GHK Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy