pepteed
Research4 min readUpdated May 2026

VIP: vasoactive intestinal peptide

VIP (vasoactive intestinal peptide) is a neuropeptide studied across immune and vascular research. This overview covers its structure and handling, with no therapeutic or dosing claims.

What it is

VIP is a 28-amino-acid peptide that occurs naturally as a signalling molecule. It is studied for its roles in vascular and immune research contexts.

Why it is studied

VIP appears in preclinical and in-vitro literature as a research tool. The findings belong to those studies; this page makes no claim about human effects.

Handling notes

  • Supplied lyophilised; reconstitute gently without shaking.
  • Keep the dry solid sealed, cold and dark.
  • Refrigerate after reconstitution and aliquot for repeated use.

For in-vitro research use only. Not for human or veterinary use.

Mentioned in the catalog
For in-vitro research use only. This guide covers general laboratory handling and is not medical, clinical or dosing advice.