: . Dr. Shintre breaks down what it is and why it works. ? A copper based peptide that naturally occurs in your 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 GHK Cu (copper peptide)based shampoo & conditioner Started: December 8, 2025 Follow up photo: January 8, 2026 Measured under the same conditions using a tape measure, this shows approximately ~1 inch of length change Copper Peptide Shampoo & Conditioner Set GHK Cu Hair Care Hairgenetix