GHK Cu peptide therapy for skin regeneration and anti aging 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 GHK CU 50 mg LIVV Glutathione and glutathione disulfide their biomedical and pharmaceutical applications Medicinal Chemistry Research Springer Nature Link