GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true?, Copper peptide, known as GHK Cu, has a growing body of peer Hair Growth Serum Intense with Copper Peptide GHK Cu Copper Peptide Hair Growth Shampoo GHK Cu for Hair Loss Hairgenetix Amazon.com: Copper Peptide Hair Serum with Copper Tripeptide 1 Dual Peptide Scalp Treatment plus Licorice Root Extract : Beauty & Personal Care GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect