What is the safe topical dosing, duration, and contraindications for the copperbinding peptide GHKCu for wound healing or antiaging? 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 Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Molecular crystal structure of the tripeptide GHK Cu. In solution, Download Scientific Diagram