Longevity: Functional Medicine for Optimal Health and Wellness 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 50mg Copper Peptide Research Grade Midwest Peptide GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms