What Is GHK Cu? The Copper Peptide That Rejuvenates Skin 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 Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare Advanced GHK Cu Face Cream 2400mg 4% Firmer Skin Neurogan Neurogan Health GHK Cu: The Peptide That Transforms Skin and Tissue Health Calibrate Hydration G H K the beauty peptide everyone's talking about If you're serious about skin health from the inside out, GHK (glycyl L histidyl L lysine) is one to know. Naturally found in the body,