GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend 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? In Vitro and in Vivo Studies of pH Sensitive GHK Cu Incorporated Polyaspartic and Polyacrylic Acid Superabsorbent Polymer ACS Omega