GHK Cu Copper Peptide Injections: Advanced Skin Rejuvenation GHK CU Copper Peptide, Face Cream, 2 oz (60 ml) GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B 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