GHK Cu Scalp Solution Empower Pharmacy The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, GHK Cu Cooper Peptide: The Complete Skin & Repair Guide (2026) 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 Beverly Hills Rejuvenation Center