They said the Topical Copper Peptide is Cope so we had to show them that it really work!, This maybe is the strongest Topical version in Europe ( 3% Blue Copper Peptide Complex ) , Only found at:, GHK Copper Peptide GHK Cu Tripeptide 1 Topical GHK Cu: Skin Benefits, Best Forms, and Where to Buy Topical or SubQ GHK Cu? Same molecule. Very different purposes. Topical you apply it on your skin. Think of it as feeding your skin from the outside. In a 12 week study of Topical GHK cu with Hyaluronic acid : r DIYaesthetics