GHK Cu (50mg) Canlab International GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Copper Peptide Regenerating Serum for Glowing Skin and Hair Are GHK Cu Injections Safe Enough? Alternatives Options Neurogan Health 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 Peptide Therapy for Pain Management and Healing Core Medical & Wellness