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 Serum for Hair Regrowth & Thinning Hair Feline Skinscience Cellular Glow Hair Serum 10% GHK Cu + 5% AHK Cu Peptides Behind healthier hair is usually a mix of care and consistency. Mayraki Hair Growth Serum Intense with Copper Peptide GHK Cu combines copper peptide to help reduce hair fall with nourishing oils Advanced GHK CU + AHK CU Peptide Hair Growth Serum 30ml Azur Skin