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Reference VIP (Vasoactive Intestinal Peptide) 5mg FOR RESEARCH
Phase II Evidence Stage
Cognitive Primary Domain
Subcutaneous injection Routes Studied
300+ PubMed Citations
Cognitive Peptide
Preclinical-Promising

VIP (Vasoactive Intestinal Peptide)

Synthetic peptide studied in animal and cell models for neuroprotection and neurotrophic support and anti-inflammatory immune modulation

Last updated: March 1, 2026

Compound Data Sheet
Peer-reviewed References
Evidence Graded
Independent Editorial
Compound
VIP (Vasoactive Intestinal Peptide)
Class
Cognitive peptide
Summary
Synthetic peptide studied in animal and cell models for neuroprotection and neurotrophic support, anti-inflammatory immune modulation, circadian rhythm regulation.
Mechanism
Vascular Smooth Muscle Relaxation
Research Status
Phase II
Routes Studied
Subcutaneous injection
Evidence Level
Preclinical-promising · Clinically unproven
[ QUICK.ANSWERS ]

What Should You Know About VIP (Vasoactive Intestinal Peptide)?

What is VIP (Vasoactive Intestinal Peptide)?
VIP (Vasoactive Intestinal Peptide) is a synthetic peptide studied in animal and cell models for neuroprotection and neurotrophic support and anti-inflammatory immune modulation.
Is VIP (Vasoactive Intestinal Peptide) clinically proven?
No. Human evidence remains limited and does not establish VIP (Vasoactive Intestinal Peptide) as clinically proven.
What has VIP (Vasoactive Intestinal Peptide) been studied for?
VIP (Vasoactive Intestinal Peptide) has been studied in preclinical models of neuroprotection and neurotrophic support, anti-inflammatory immune modulation, circadian rhythm regulation. These findings have not been confirmed in large-scale human trials.
Is VIP (Vasoactive Intestinal Peptide) approved?
No. VIP (Vasoactive Intestinal Peptide) is not an approved drug and remains a research compound.
[ COMPOUND.PROFILE ]

What Is VIP (Vasoactive Intestinal Peptide)?

Vasoactive Intestinal Peptide (VIP) is a 28-amino acid linear neuropeptide belonging to the glucagon/secretin superfamily of regulatory peptides. First isolated from porcine small intestine by Said and Mutt in 1970, VIP was initially characterized for its potent vasodilatory properties. Subsequent decades of research revealed that VIP functions as a widely distributed neuropeptide and neuromodulator, expressed throughout the central and peripheral nervous systems, immune system, gastrointestinal tract, pulmonary epithelium, and cardiovascular...

[ EVIDENCE.SUMMARY ]

Evidence Summary

Preclinical-promising · Clinically unproven

VIP (Vasoactive Intestinal Peptide) is a research compound with promising biological signals but limited human validation. Most claims exceed current clinical evidence.

Evidence Breakdown

Domain Evidence Level
Neuroprotection and Neurotrophic Support Limited
Anti-Inflammatory Immune Modulation Limited
Circadian Rhythm Regulation Limited
Pulmonary and Vascular Function Limited
Human clinical evidence Limited
Safety data Insufficient

Editorial Position

VIP (Vasoactive Intestinal Peptide) is best understood as a compound with emerging clinical evidence that has not yet reached definitive conclusions. Many online claims exceed the strength of available human evidence, and safety data remains incomplete. Any consideration of this compound should involve careful evaluation of individual context and medical guidance.

Regulatory Status Snapshot

  • Not approved as a therapeutic drug by major regulators
  • Safety profile not established in large human populations

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[ STUDIED.FOR ]

What Has VIP (Vasoactive Intestinal Peptide) Been Studied For?

Research areas where VIP (Vasoactive Intestinal Peptide) has been investigated in published studies

  • Neuroprotection and Neurotrophic Support VIP (Vasoactive Intestinal Peptide) has been studied in animal models of neuroprotection and neurotrophic support. These findings have not been confirmed in controlled human trials.
  • Anti-Inflammatory Immune Modulation VIP (Vasoactive Intestinal Peptide) has been studied in animal models of anti-inflammatory immune modulation. These findings have not been confirmed in controlled human trials.
  • Circadian Rhythm Regulation VIP (Vasoactive Intestinal Peptide) has been studied in animal models of circadian rhythm regulation. These findings have not been confirmed in controlled human trials.
  • Pulmonary and Vascular Function VIP (Vasoactive Intestinal Peptide) has been studied in animal models of pulmonary and vascular function. These findings have not been confirmed in controlled human trials.
[ MECHANISM ]

How Does VIP (Vasoactive Intestinal Peptide) Work?

These mechanisms have been observed in preclinical models. They are plausible but have not been linked to proven clinical outcomes in humans.

  1. 01 Receptor interaction
  2. 02 Intracellular signaling
  3. 03 Neuroprotective Gene Transcription
  4. 04 NF-kappaB Inhibition & Immune Modulation
NEXT STEP

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[ COMMUNITY.FEEDBACK ]

Community Reports (Anecdotal)

Experiences shared here are self-reported and do not represent clinical evidence.

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[ ADMINISTRATION ]

How Is VIP (Vasoactive Intestinal Peptide) Administered?

VIP (Vasoactive Intestinal Peptide) is available via Subcutaneous injection. Appropriate use and protocol should be determined by a qualified specialist.

[ REFERENCE.DATA ]

What Are the Specifications of VIP (Vasoactive Intestinal Peptide)?

Format Lyophilized Powder
Amount 5mg per vial
Purity >98%
Purity Method HPLC (High-Performance Liquid Chromatography)
Sequence His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-NH2
Molecular Weight 3326.82 g/mol
Storage Store lyophilized powder at -20C. Reconstituted solution at 2-8C. Protect from light and moisture.
Appearance White to off-white lyophilized powder
[ EXPLORE ]

What Conditions Has VIP (Vasoactive Intestinal Peptide) Been Linked To?

Have Questions About VIP (Vasoactive Intestinal Peptide)?

VIP's plasma half-life of approximately 1-2 minutes results from rapid enzymatic degradation by dipeptidyl peptidase IV (DPP-IV) and neutral endopeptidase, both of which are abundant in plasma and on endothelial cell surfaces.

Published studies on VIP (Vasoactive Intestinal Peptide) can be found on PubMed and other peer-reviewed databases. Our references section below lists key citations.

VIP (Vasoactive Intestinal Peptide) is available as a research compound in Thailand. Consult a qualified specialist to discuss whether it is appropriate for your needs.

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EDITORIAL REVIEW

Reviewed by the Peptide Science Thailand Editorial Team.

Last reviewed: March 1, 2026

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The information provided on this website, including compound profiles, mechanism of action explanations, research summaries, dosage information, and educational content, is for informational and educational purposes only. This information does not constitute medical advice, diagnosis, or treatment recommendations. No content on this website should be interpreted as a substitute for professional medical advice, diagnosis, or treatment.

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All peptide compounds discussed on this website should only be used under the supervision of a qualified specialist. A healthcare provider should evaluate individual health status, medical history, current medications, and specific health objectives before any peptide use. Self-administration of research peptides without medical supervision is strongly discouraged and may pose significant health risks.

Individual Variation

Individual responses to peptide compounds vary significantly based on genetics, age, body composition, existing health conditions, concurrent medications, and other biological factors. Dosage information provided on this website represents general research ranges and should not be used for self-dosing. A qualified specialist should determine the appropriate compound, dosage, administration route, cycle duration, and monitoring protocol based on individual health assessment.

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Regulatory Status

Many peptides discussed here have not been evaluated or approved by the FDA for therapeutic use unless specifically noted (e.g., Tesamorelin, PT-141). The regulatory status of peptide compounds varies by jurisdiction. Some compounds discussed on this website are approved medications in other countries (e.g., Semax and Selank in Russia). This content is for informational and educational purposes only. Users are responsible for understanding and complying with all applicable laws and regulations in their jurisdiction.