Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care GHK Cu vs AHK Cu: Which Copper Peptide Is More Effective? Copper Peptide Hair Growth Serum for Hair Loss & Thinning Hair Feline Skinscience GHK Cu peptides are used to potentially promote hair growth, increase hair follicle size, and improve scalp health, often for conditions like androgenetic alopecia. As a regenerative peptide, GHK Cu is believed to More than hair its cellular support , GHK CU is a well studied copper peptide known for its role in supporting:, Healthier looking hair & scalp environment, Hair that appears thicker, GHK Cu Peptide for Hair Regrowth: Alopecia & Thinning Help