GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Small molecules. Powerful results. Experience Peptide Power with Hairgenetix's advanced Copper Peptide Hair Growth Serum, formulated with 10% GHK Cu and 5% AHK Cu to support hair health at the follicle level. Helps Copper Peptide GHK CU, AHK CU Peptide Hair Growth Treatment Serum Dual Peptides eBay Peptide Therapy for Hair Growth: Does It Really Work? IK Clinics 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care More than hair its cellular support , GHK CU is a well studied copper peptide known for its role in supporting:, Healthier looking hair & scalp environment, Hair that appears thicker,