Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule GHK Cu: The Regenerative Peptide for Skin, Hair, and Healing Pulse & Remedy 89030 95 5 GHK Cu Gly His Lys Cu Copper Tripeptide 1; Prezatide copper 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 Peptide Benefits for Skin and Hair LIVV Natural