Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care Peptide Therapy for Hair Growth: Explore Your Options So excited about this peptide! GHK Cu serum and scalp solution available Fascinating peptide that helps to prevent and reduce fine lines and wrinkles. Applied topically on the scalp for hair growth. 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care This compound has been studied for over 50 years., Most people discovered it last year on social media., , In 1973, Dr. Loren Pickart identified GHK Cu, while studying why young blood could restore