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 Copper Peptide Benefits, Uses & Safety Intra V GHK Cu Peptide (50mg) Advanced Skin Rejuvenation & Healing Support GHK Cu Copper Peptide: The Ultimate Peptide For Longevity People are searching for the GHK Cu pen. Ordering it online. Trying to figure out how to use it safely at home. We looked at all of that and thought: there has to