Private Label Organic Professional Treatment Hair Loss Copper Peptide Hair Growth Serum10% Ghk Cu Hair Growth Serum GHK CU Copper Peptide, Hair & Scalp Serum, 2 oz (60 ml) GHK Cu Copper Peptide Hair & Scalp Serum 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 GHK Biotin Peptide Serum Organic Anti Aging & Hair Growth Copper Peptides for Hair Serum GHK Cu for Hair PLU Labs