Hair Growth Serum Intense with Copper Peptide GHK Cu 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 Juvasonic + Vitali Copper Peptide (GHK Cu) Bundle Copper Peptide Hair Growth Treatment GHK cu, AHK cu, Licorice Root Extract, Ginseng Root Extact