GHK Cu is getting a lot of attention right now, and for good reason. This is not just a skin peptide. It's a copper binding tripeptide with documented effects on gene expression, collagen synthesis, Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare Ghk cu Copper Peptide Serum Anti Aging & Firming Care GHK Copper Peptide GHK Cu Tripeptide 1 GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B