Copper Peptides for Skin Copper Peptides for Face PLU Labs GHK Cu Peptides Benefits for Anti Aging Skin Rejuvenation How to Use With Micro Infusion GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B 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