GHK Cu 50mg High Purity Research Peptide GHK Cu 100mg Research Compound Australia inorganic chemistry Why do copper (II) complexes contain so many valence electrons? Chemistry Stack Exchange GHK Cu: Regenerative Signaling and Molecular Reprogramming Research English Version Peridico Digital Centroamericano y del Caribe Your copper peptide product should be this exact blue. If it isn't, you already have your answer. GHK Cu is blue because of coordination chemistry, not dye. The Cu ion at the center