GHK Cu Copper Peptide Hair Serum 30ml Azur Skin Boost your health with GHK Cu! This powerful peptide promotes skin repair, reduces inflammation, and supports wound healing. Studies suggest it may enhance collagen production, improve antioxidant activity, and even aid in 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 Skin Care