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 Copper Peptide (GHK Cu): Clinical Uses, Stability & Compounding Tips GHK Cu 50mg Particle Peptides LVLUP Health GHK Cu Oral Copper Peptide Capsules Holistic Lifestyler Bunbury Chiropractic Services & Supplement Store GHK Cu Capsule (60 Capsules Per Bottle) Modified Aminos