GHK Cu Peptide: Turn Back the Clock Naturally Calibrate Hydration GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Viral claim says GHK Cu reset nearly 4,000 genes to a younger state and increased collagen production in a preclinical study. This refers to research on GHK Cu, a naturally occurring copper binding peptide that GHK Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy GHK Cu Peptide (50mg) Advanced Skin Rejuvenation & Healing Support