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It acts as a mitochondrial messenger that communicates with the nucleus to maintain cellular homeostasis, making it a promising target for research on metabolic health, exercise performance, and healthy aging 1-4

The GHK-Cu complex adopts a square-planar geometry, coordinated through the nitrogen atoms of the imidazole ring of histidine, the -amino group of glycine, and the deprotonated amide nitrogen of the glycine-histidine peptide bond

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