Much ado about nothing: the peptide they say never worked GHK CU vs AHK CU Difference Explained AOD 9604 Fat Metabolism & Weight Regulation Peptide Private Label Organic Professional Treatment Hair Loss Copper Peptide Hair Growth Serum10% Ghk Cu Hair Growth Serum Cosmetics Grade Ghk Cu Peptide Ahk Cu Peptide Powder Blue Ghk Copper Peptide Ahk Copper Peptide and Blue Copper Peptide Has anyone tried aGHK CU serum for hair? It's a copper peptide based serum for hair. : r FemaleHairLoss