Retatrutide is an investigational peptide being studied for its activity across three metabolic hormone receptors: GLP-1, GIP, and glucagon. Preclinical and clinical research has explored its potential effects on metabolic signaling, energy balance, glucose regulation, and body-weight management. Retatrutide is commonly investigated in research focused on metabolic pathways, appetite signaling, and the development of next-generation multi-receptor therapies. Research Use Only. Not for human or veterinary use.