GHK Cu, commonly known as copper peptides, are found naturally within the human body where they play a vital role in skin repair and maintenance. Copper peptides support optimal skin function by helping 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 Private Label Organic Professional Treatment Hair Loss Copper Peptide Hair Growth Serum10% Ghk Cu Hair Growth Serum Nortech Labs GHK Cu Copper 50 Neurogan Health, GHK Cu Copper Peptide, Hair & Scalp Serum Beauty & Hair GHK Cu GOSTRIPS