GHK Cu for hair growth does it actually work? Short answer: no. GHK Cu can be great for skin but when it comes to hair growth, the evidence just isn't there. And this Copper Peptide Hair Growth Treatment GHK cu, AHK cu, Licorice Root Extract, Ginseng Root Extact Copper Peptide 10% GHK CU, 5% AHK CU with Oligopeptide 1 Hair Treatment Serum eBay Copper Peptide Hair Growth Serum AHK Cu & GHK Cu + Licorice Peptide Labz Copper Peptide Serum for Hair Regrowth & Thinning Hair Feline Skinscience Everyones asking how my my hair to grow like weeds heres the secret , Its not just oils or vitamins its science and @prettygangofficial__ , GHK Cu triggers collagen + new blood vessel formation