The hype is real. Ghk Cu aka the copper beauty peptide GHK Cu for hair growth does it actually work? Short answer: no. GHK Cu can be great for skin but when it comes to hair growth, the evidence just isn't there. And this Almost 4 months on GHK Cu hair growth progress : r tressless Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care Morningstar Copper Peptide Serum for Hair Regrowth & Thinning Hair Feline Skinscience