GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Cellular Glow Copper Peptide GHK Cu Serum for Face Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare Ghk Cu Shampoo Copper Peptide Hair Growth Best Peptide for Hair Growth Copper Peptide Shampoo 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK