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 10 g (10% Concentrate, 100,000 ppm) Lrak Technologies Peptide Labz Copper Peptide Hair Growth Serum, 10% GHK cu, 5% AHK cu, Rejuvenates Follicles Walmart.com HOEGOA Copper Peptide Hair Growth Serum With GHK CU AHK CU Powerful Hair Growth Treatment Stimulates Follicles Reduces Thinning Thickens Hair Improves Scalp Health for Fuller Stronger Hair Over Time 30ml Best Price