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. Every batch is quality-controlled and batch-specific COA can be supplied on request. Unopened product should be kept sealed at 2-8 degree C away from light and moisture, with -20 degree C recommended for long-term storage. We accept both trial and bulk orders, and OEM and private-label service is available. This peptide is for laboratory research use only, not for human or veterinary purposes.