Composition

• Tripeptide Sequence: Glycyl-L-Histidyl-L-Lysine (GHK).

  • Glycine (Gly): The simplest amino acid, providing flexibility to the peptide chain.

  • L-Histidine (His): Contains an imidazole ring that is critical for binding (chelating) the copper ion.

  • L-Lysine (Lys): A basic amino acid that helps the peptide interact with cellular receptors at physiological pH.

• Metal Ion: Copper (II) (Cu²⁺). The peptide has a remarkably high affinity for copper, forming a stable 1:1 molar ratio complex.