Neurogan Health, GHK Cu Copper Peptide, Hair & Scalp Serum About 3 weeks in with this serumNAD+ and GHK Cu are doing their thing. She's a keeper. Want the details? Just ask. #peptidetherapy #peptideskincare #ellievateskin #GHKCu #NADplus #biohackinglongevity Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care Morningstar Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000