AHK CU Peptide for Hair Growth Plu Labs Discovery Size (10 ml) 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 Scalp AHK Cu Serum Nubeean Noosa Copper tripeptide 3 (AHK Cu) Bioactive Peptide MedChemExpress Set Hairgenetix Set AHK Cu 1g (Topical, raw) Polaris Peptides