Research Use Only. Not an approved medicine and not for human use. Educational only — no dosing or medical advice.
What it is
VIP is a naturally occurring 28-amino-acid neuropeptide with wide roles in the gut, lungs, immune system and circadian signaling.
Proposed mechanism
It signals through VPAC receptors (GPCRs), producing vasodilation, smooth-muscle relaxation and immunomodulation.1 It is studied in inflammatory conditions.
State of the evidence
Rich basic science; broad research-chemical use is not an approved therapy.
Regulatory & status
Sold RUO for research; not an approved general therapy.
Reconstitution (reference only)
Lab-handling reference only — not a preparation or dosing instruction: 2.5 mL (250 units) reconstitution solution per vial. See the reconstitution calculator for the arithmetic. This page does not provide dosing guidance.
For educational and research purposes only. This content is not medical advice. Compounds referenced are research use only and not intended to diagnose, treat, cure, or prevent any disease. Free Peptide University does not sell compounds.