November 1, 2026
Retatrutide is a synthetic peptide studied for its activity at three receptors: the glucagon-like peptide-1 receptor (GLP-1R), glucose-dependent insulinotropic polypeptide receptor (GIPR) and glucagon receptor (GCGR). All three belong to the class B1 family of G protein-coupled receptors (GPCRs). One Read more…