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 Copper Peptide Hair Growth Conditioner GHK Cu for Hair Loss Hairgenetix Cellular Reset Epithalon + GHKCu in Chicago Longevity & Skin Regeneration Peptide Therapy at Better Med Spa Copper Peptides Elmhurst IL Chicago Accelerated Aesthetics