GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Understanding the Concentration: Why 3% GHK CU is the Sweet Spot for S Aseir Custom GHK Cu Before and After: See Fine Lines and Wrinkles Fade Fast GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Teen Boys and Young Men Are Injecting Peptides in Search of Perfection WSJ 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