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 The Science of GHK Cu Peptide Regeneration GHK Cu HGH & Peptides Deus Medical GHK Cu Peptide: Mechanism, Anti Aging Research, and Regenerative Benefits How GHK Peptide Works Signaling GHK acts as a switch for skin repair: Interacts with adenosine receptors reduces inflammation Activates MAPK ERK, PI3K Akt, TGF pathways Stimulates fibroblasts & keratinocytes boosts collagen, elastin The copper(II) binding tripeptide GHK, a valuable crystallization and phasing tag for macromolecular crystallography