GHK Cu: My secret weapon for skin, hair, and healing, I use it two ways topical cream for my face, and subQ injections 3x a week., It boosts collagen, tightens skin, helps hair grow, and even Do It All Peptides: The Future of Anti Aging? GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Dr Paul skipped spending thousands of $$$ for injectable peptides. He is spending less than $90 mo with our patch, activating his own GHK Copper Peptides! The changes in his skin and complexion