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Retatrutide is a synthetic peptide that acts as a triple agonist at the GLP-1, GIP, and glucagon receptors. It has been investigated for its effects on metabolic signaling, energy expenditure, and appetite mechanisms in research and clinical-trial settings. Each vial is lyophilized, sealed, and shipped with a lot-specific Certificate of Analysis. Reconstitute with bacteriostatic water prior to research use.