El GHK Cu (Copper Peptide) for Hair Supports healthier, stronger looking hair Helps nourish the scalp and hair follicles Promotes thicker, fuller appearance Encourages improved Shed Copper Peptide Hair Growth Serum Take an Rx approach to hair health Support hair growth at the follicle level. GHK Cu is a copper peptide naturally produced by the body that plays a role in tissue repair, healing, and hair follicle activity. As levels decline Ghk Cu Shampoo Copper Peptide Hair Growth Best Peptide for Hair Growth Copper Peptide Shampoo