Neurogan Health, Copper Peptide GHK CU, 120 mcg, 60 Tablets iHerb 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 GHK Cu Scalp Solution Empower Pharmacy Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Jumbo Size Copper Peptides for Skin Copper Peptides for Face PLU Labs