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 GHK Cu Copper Peptide Skin & Healing Beverly Hills The Risks of Using GHK Cu Peptides in Wellness Trends GHK CU Peptide for Skin Rejuvenation Wittmer Rejuvenation Clinic GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend