My Hair Growth Kit for Women Minoxidil + GHK Cu for Hair Appearance Eden Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care PDF) The effect of tripeptide copper complex on human hair growth in vitro 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