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. The 28-mer neuropeptide VPAC-receptor actions are studied in neuroimmunology, gut physiology and pulmonary research. Investigators evaluate its anti-inflammatory and vasodilatory effects in disease models. The lyophilized powder is supplied with HPLC purity data. The peptide is used in receptor-pharmacology assays and in disease models of inflammation, where its protective effects are measured by cytokine and tissue endpoints. Investigators value its defined 28-residue sequence and the purity documentation that supports reproducible dosing across experimental platforms. The lyophilized format provides excellent stability and simplifies reconstitution for reproducible dosing. Goods are shipped with temperature-appropriate packaging and complete documentation, and our team confirms order details, quantity and delivery terms before production begins. Combined orders across our peptide catalog are welcomed and consolidated to reduce freight costs. Feel free to reach out for price lists, availability or customization requests. WhatsApp: +852 4423 6619, contact person: Aurora, Email: 18963519387@163.com. Our sales team provides friendly and efficient service for international buyers. YIWU SHUNXIAN TRADING CO., LTD. is a professional supplier of high-purity research-grade peptides and matching laboratory consumables, dedicated to supporting global research teams for biochemical and life-science studies. We bridge qualified peptide raw-material resources with stable international logistics service, offering researchers and industry partners a dependable source for their laboratory development projects.