The Benefits & Risks of GHK Cu (WATCH BEFORE TAKING) Glow Peptide Protocol GHK Cu, BPC 157, TB 500 Neurogan Health : . Dr. Shintre breaks down what it is and why it works. ? A copper based peptide that naturally occurs in your 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