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Glutathione is a tripeptide composed of three amino acids: cysteine, glutamic acid, and glycine

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Are peptides safer than hormones? Sometimes

Biochemical characteristics Peptide Sequence: Gly-His-Lys (Cu 2+ ) Molecular Class: Copper-complexed Tripeptide Metal Coordination: Cu 2+ bound to histidine and amine residues GHK exhibits strong affinity for copper ions, and metal coordination supports distinct biochemical behaviors compared to the uncomplexed tripeptide

Pain/redness at the injection site, mild diarrhea, itching, or a feeling of swelling all over the body may occur

10.1111/j.1365-2125.1986.tb02953.x Br