GHK Cu Copper Peptide Therapy 7 days on GHK Cu. Here's my honest update. I'm not going to hype this up because the real results don't even start until week 46. But something is already happening. Melanotan II (MT2) 10mg 24Peptides Intermediate Cu(II) Thiolate Species in the Reduction of Cu(II)GHK by Glutathione: A Handy Chelate for Biological Cu(II) Reduction Inorganic Chemistry Meet the peptide that dermatologists and longevity experts are obsessed with: Glycyl L Histidyl L Lysine Copper Peptide, What it does:, Smooths fine lines, Boosts collagen + elastin, Evens tone