Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care GHK Cu Hair Growth 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 7% GHK CU ACCELERANT Platinum Skin Care GHK Cu Scalp Serum Copper Peptide for Hair GOAL.MD