Copper Peptide Hair Growth Serum AHK Cu & GHK Cu + Licorice Peptide Labz 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 Copper Peptide Serum 10% GHK CU 5% AHK CU Powerful Hair Growth Treatment Stimulates Follicles Reduces Thinning Thickens Hair Improves Scalp Health for Fuller Stronger Hair Over Time : Amazon.ae: Beauty