(2020) characterized the ternary copper complex formed between GHK, copper(II), and cis-urocanic acid (a UV-absorbing compound in skin), demonstrating a potential mechanism for GHK-Cu to function as a solar photoprotectant while maintaining its copper-delivery function
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Glutathione is coupled to the magnetic agarose beads to obtain an affinity matrix with highest binding capacity for GST fusion proteins
The name reflects the three amino acids that form the peptide structure: Glycine Histidine Lysine Although GHK itself is biologically active, its most studied and therapeutically relevant form is GHK-Cu, which is formed when the peptide binds with a copper ion