GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution GHK CU Topical Serum 30ml Azur Skin 7% GHK CU ACCELERANT Platinum Skin Care Your skin heals better when your barrier is strong. Topical GHK Cu peptide helps support that process 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 GHK CU Copper Peptide, Hair & Scalp Serum, 2 oz (60 ml)