Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 GHK CU Shop 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 GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B 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 &