The Benefits & Risks of GHK Cu (WATCH BEFORE TAKING) The Blue Revolution: Why 1% Pure GHK Cu is the New Standard for Mature Pure & Cimple 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: The Peptide That Rebuilds, Repairs & Rejuvenates Boston Health Longevity GHKCu Copper Peptide Therapy Skin & Healing Regeneration