VIP (Vasoactive Intestinal Peptide) is a 28-amino-acid neuropeptide widely distributed in the nervous and digestive systems, studied in neuroscience and immune-regulation research. It is supplied as a high-purity white lyophilized powder, >=99% by HPLC, in sealed vials for laboratory use. VIP is investigated in research on neuropeptide signaling, inflammation modulation, autonomic regulation and gut-brain communication, and is commonly applied in cell-based and preclinical studies. The lyophilized format ensures high stability and easy reconstitution for reproducible experimental dosing. Strict quality control is maintained on every batch, and COA is available for specific batches on request. Keep the unopened product sealed at 2-8 degree C away from light; -20 degree C is recommended for long-term storage. Small and bulk orders are both welcome, and OEM and discreet neutral packing are offered. For laboratory research use only, not for human or veterinary application.