Copper Peptide Hair Growth Conditioner GHK Cu for Hair Loss Hairgenetix A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend 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 Peptides, like Bio Identical Hormones, are not a magic bullet but they are pretty darn close. Over the years, we have seen them effectively heal chronic wounds, reduce joint paint and