Copper Peptides for Skin: A Complete Guide 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 What is the optimal dosing regimen of GHKCu for topical skincare and woundhealing applications? GHK Cu for Skin Rejuvenation WeCare Pharmacy 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 A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend