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 Hair Growth Serum Stimulate & Prevent Loss Cosmetic Grade Ahk cu + Ghk cu Powder Copper Tripeptide 1 Blue Copper Peptide GHK Copper 1g Tube Ghk cu Copper Peptide Copper Peptide Hair Growth Serum (GHK Cu & AHK Cu) Copper Tripeptide GHK Cu AHK Cu 89030 95 5, Copper Tripeptide GHK Cu AHK Cu Formula ECHEMI