The Definitive Peptide Research Reference Guide — Compound Review

Immune Research

VIP Dosage Guide

VPAC Receptor Agonism & Neuroimmune Modulation. Research-grade protocols, administration guidelines, and safety considerations.

Research Use Only. The information on this page is intended for educational and research purposes only. VIP is not approved for human therapeutic use. Consult a qualified healthcare professional before use.

Mechanism of Action

VIP is a 28-amino-acid neuropeptide that acts as an agonist at VPAC1 and VPAC2 receptors (vasoactive intestinal peptide receptors). It has potent vasodilatory, anti-inflammatory, and immunomodulatory effects. VIP inhibits pro-inflammatory cytokine production (TNF-alpha, IL-6, IL-12) and promotes regulatory T-cell activity.

Research Dosage Protocols

ProtocolDoseFrequencyRouteDuration
Immune/Anti-Inflammatory Research50 mcgOnce or twice dailySubQ or intranasal4–8 weeks
Pulmonary Research50–100 mcgTwice dailyIntranasal4–6 weeks
Conservative Start25 mcgOnce dailySubQ injection2–4 weeks

Frequently Asked Questions

What is the standard VIP dosage?

Research protocols typically use 50 mcg administered subcutaneously or intranasally once or twice daily. Intranasal delivery is commonly used in CIRS (Chronic Inflammatory Response Syndrome) research protocols.

What administration routes are used for VIP?

VIP can be administered subcutaneously (injection) or intranasally. Intranasal delivery is preferred in some protocols for direct CNS access and convenience.

How long is a VIP research cycle?

Research cycles typically run 4–8 weeks. VIP is often used as part of a broader treatment protocol in CIRS research.

Does VIP require reconstitution?

Injectable VIP requires reconstitution with bacteriostatic water. Intranasal VIP formulations are typically pre-mixed solutions.

What are the reported effects of VIP?

Research has shown VIP has potent anti-inflammatory effects, regulates immune cell activity, improves pulmonary function, and modulates circadian rhythms. It is studied in CIRS, autoimmune conditions, and pulmonary hypertension.

Research-Grade VIP

≥99% purity, third-party tested, Certificate of Analysis available. Ships with BAC water included.

Shop VIP at Purgo Labs

Medical Disclaimer: All content on this site is for educational and research purposes only. Research peptides are not FDA-approved for human use. Always consult a qualified healthcare professional before considering any peptide or supplement protocol. Nothing on this site constitutes medical advice, diagnosis, or treatment.