Absolute GROW: GHK cu Copper Peptide Hair Growth Poland Ubuy Copper peptides (GHK Cu) have been studied for decades for their role in tissue repair and that same biology applies to hair. Research shows GHK Cu may help strengthen existing hair follicles, reduce 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 Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with