GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia 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 Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare Amazon.com: QUBIT GHK Cu Copper Peptide Face Cream 4% Peptides Moisturizer for Fine Lines, Wrinkles, Firming, Deep Hydration & Collagen 2400mg GHK Cu for All Skin Types, 30g : Beauty & GHK Cu: The Peptide Everyone Is Injecting (Big Mistake?) A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend