Exenatide, also known as Exendin-4, is a 39-amino-acid GLP-1 receptor agonist originally derived from the saliva of the Gila monster, widely used as a research reference in incretin biology. It is supplied as a high-purity white lyophilized powder, >=99% by HPLC, in sealed vials for laboratory use. Exenatide is investigated in research on glucose-dependent insulin secretion, appetite control, beta-cell function and metabolic signaling, and is commonly applied in cell-based assays, receptor pharmacology and preclinical studies. The lyophilized format provides excellent stability and reproducible reconstitution, supporting consistent experimental dosing. Each production batch is tested for purity and batch COA is issued upon request. Store the sealed vial at 2-8 degree C, protected from light and humidity; for extended storage -20 degree C is recommended with limited freeze-thaw cycles. Trial orders and bulk supply are both accepted, with OEM and private-label service and discreet neutral packing for worldwide shipping. Research use only, not for human or veterinary application.