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 Ahk Cu Vs Ghk Cu Comparison Hair Growth Skin Benefits Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference Neurogan Health Introduces AHK CU + GHK CU Hair Serum Pro AHK Cu Cosmetic Raw Material CAS NO 682809 81 0 Copper peptide Wholesale & Bulk