GHK Cu (Copper Tripeptide Serum) in Santa Barbara, CA Eternity Health Partners 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 vs AHK Cu: Which Copper Peptide Is More Effective? Why Collagen Loss Accelerates After 40: The Role of GHK Cu in Menopaus Pure & Cimple