Private Label Organic Professional Treatment Hair Loss Copper Peptide Hair Growth Serum10% Ghk Cu Hair Growth Serum Multi Peptide + Copper Peptides 1% The Ordinary Meet the ingredient your skin has been waiting for. GHK Cu, or Copper Tripeptide 1, is one of the most researched anti ageing actives in skincare. It firms. It renews. It supports collagen. And now 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care Natural Copper Peptide Serum Booster