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 Copper Peptide GHK Cu Tripeptide 1 Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare Copper Peptide (GHK Cu) 2% Recovery Serum GHK Cu: The Peptide That Transforms Skin and Tissue Health Calibrate Hydration GHK Cu Copper Peptide Collagen Boost & Skin Regeneration Calibrate Hydration