6 month GHK CU check in Main takeaway: skin transformation takes time. GHK CU peptide binds to copper and activates genes involved in wound healing, collagen synthesis, and skin remodeling. On the face, this translates Copper Peptides Serum for Face 2% GHK CU & 4% EGF 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 Peptide Journey Update: GHK cu for Hair Growth Ghk cu results so far! This is only 3 weeks of using ghk cu 1 mg 5 days a week, also she added it to her tallow cream that she use Amazon.com: Bargad 5% GHK Cu Copper Peptide Face Serum Anti Aging Firming Serum for Fine Lines & Skin Renewal With 2% Niacinamide, Hyaluronic Acid, Alpha Arbutin & Centella Asiatica All Skin