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Vasoactive Intestinal Peptide (VIP)

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Also called: Vasoactive intestinal polypeptide (VIP), VIP Peptide (Vasoactive Intestinal Peptide)

By The Health Stacks Research TeamUpdated September 4, 2026

Vasoactive Intestinal Peptide (VIP) is a peptide studied for its effects on the body.

ApprovedApproved by a regulator (e.g. FDA) for a specific medical use — the highest research-status tier. Verified confidence80–100 — backed by strong, well-corroborated sources (peer-reviewed research, clinical guidelines). Our highest confidence tier.

Benefits

What Vasoactive Intestinal Peptide (VIP) Helps With

The benefits people report — backed by research.

Neuroprotection & cognitive (21)

Very low incidence of penile pain compared to existing intracavernosal therapies 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Neurotransmission 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Improved spatial memory in Alzheimer's model 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Brain / cognitive 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Negative correlation with anxiety and depression symptoms 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Enhanced resting-state functional connectivity between amygdala and emotion-processing regions 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Positive correlation with grey matter volume in the amygdala and orbitofrontal cortex 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →VIP functions as a neurotransmitter in the CNS and neurons of the GI, respiratory, and urogenital tracts 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Enhanced functional connectivity in the amygdala network 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Modulates activity of pyramidal cells in local microcircuits 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Encodes diverse stimuli across anxiety-related and social contexts in the anterior cingulate cortex 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Supports goal-oriented spatial learning in the hippocampus 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Contributes to avoidance behavior by regulating information flow across hippocampal-prefrontal networks 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Neurotrophic and Neuronal Survival Factor 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Disinhibition of projection neurons 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Regulation of fear learning and extinction 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Modulation of synaptic inputs from thalamic and cortical sources 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Enhances somatosensory cortical responses 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Recovery 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Preserves sensory response fidelity in active neurons 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Sleep 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →

Cardiovascular & vascular (17)

Vasodilation 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources3Every claim links to the page it came from, and stronger sources rate higher. Full methodology →· 3 srcPotent Vasodilation 95/100Rated 95/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Increased Coronary Blood Flow 95/100Rated 95/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Positive Inotropic Effect 95/100Rated 95/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Increased Heart Rate 95/100Rated 95/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Neuromuscular function 90/100Rated 90/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Angiogenesis 90/100Rated 90/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Positive inotropic effect increasing atrial and ventricular contractility 90/100Rated 90/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Free-Radical Scavenging During Reperfusion 90/100Rated 90/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Increases heart rate, more potently than norepinephrine 88/100Rated 88/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Potent Vasodilator 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Increases Coronary Artery Blood Flow 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Increases Heart Rate 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Free-radical scavenging effect during reperfusion 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Increases coronary artery blood flow and cross-sectional area 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Potential free-radical scavenging effect during reperfusion 75/100Rated 75/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Potential free-radical scavenging effect during coronary reperfusion 70/100Rated 70/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →

Gastrointestinal & gut (6)

Potent vasodilatory effects increasing gastrointestinal mucosal blood flow 90/100Rated 90/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Stimulates intestinal anion and HCO3- secretion via CFTR activation 90/100Rated 90/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Gastric / gut lining 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Regulation of nutrient absorption 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Secretagogue function 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Brain / cognitive 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →

Reproductive & hormonal (5)

Effective treatment for moderate to severe ED 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Effective in men who failed other therapies 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Negligible risk of priapism 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Physiological Mediator of Prolactin Release 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Induces Growth Hormone Release 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →

Anti-inflammatory (3)

Anti-inflammatory 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Neuroprotection via inhibition of proinflammatory mediators 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Treatment of neuronal, metabolic, and inflammatory diseases 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →

Immune modulation (3)

Immune modulation 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources2Every claim links to the page it came from, and stronger sources rate higher. Full methodology →· 2 srcImmunomodulation 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →VPAC1 agonist treatment prevents EAE development 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →

Musculoskeletal (2)

Muscle recovery 90/100Rated 90/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Ameliorates intervertebral disc degeneration 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →

Glycemic & metabolic (2)

Insulin sensitivity 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Glycemic control 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →

Antimicrobial & antiviral (2)

Prevents HIV gp120-induced Neuronal Cell Death 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Potential target for antiviral therapy 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →

More reported benefits (7)

Significantly increases heart rate 90/100Rated 90/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Regulation of ion secretion 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →VPAC1 gene loss impairs development of EAE 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →VPAC1 antagonist pretreatment reduces EAE clinical symptoms 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Free-radical Scavenging Effect 75/100Rated 75/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →Insulin sensitivity 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →VIP regulates circadian pacemaker in the suprachiasmatic nucleus via VIPR2 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →

Free: The Peptide Stack Cheat-Sheet

You just read the research on Vasoactive Intestinal Peptide (VIP). The cheat-sheet maps the most-used peptide stacks — doses, timing, and what to check before buying — on one page.

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How People Use It

1 reported routine — each line links to the source it came from.

From published sources

Routines as reported in peer-reviewed papers, clinical guidance, or vetted media — each linked to the source it came from.

SubQ

  • Intranasal treatment (specific dosage not provided) 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →↗ source

mg vs mcg: one milligram (mg) equals 1,000 micrograms (mcg) — multiply by 1,000 going from mg to mcg, divide by 1,000 going from mcg to mg. Mixing the two up is a thousand-fold dosing error: 1 mg taken instead of 1 mcg is a 1,000× overdose; 1 mcg instead of 1 mg is a 1,000× underdose. Always double-check the unit label and the decimal place.

Safety

Known Side Effects

Adverse effects reported in the research and by community use.

  • Penile PainMild 95/100Rated 95/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →pubmed.ncbi.nlm.nih.gov
  • PriapismMild 95/100Rated 95/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →pubmed.ncbi.nlm.nih.gov
  • Hypotension (Reduction in Mean Arterial Pressure)Moderate 90/100Rated 90/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →pubmed.ncbi.nlm.nih.gov
  • Severe watery diarrhea (from hypersecretion/VIPoma)Severe 90/100Rated 90/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →doi.org
  • Hypokalemia and achlorhydria (WDHA syndrome)Severe 90/100Rated 90/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →doi.org
  • Systemic hypotensionModerate 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →doi.org
  • Minor nasal irritationMild 85/100Rated 85/100Source typePeer-reviewed studyIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →pubmed.ncbi.nlm.nih.gov
  • Severe watery secretory diarrheaSevere 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →emedicine.medscape.com
  • Hypokalemia (severe potassium depletion)Severe 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →emedicine.medscape.com
  • Achlorhydria (absence of gastric acid secretion)Moderate 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →emedicine.medscape.com
  • Hypovolemic shockLifeThreatening 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →emedicine.medscape.com
  • Cardiac arrhythmiaLifeThreatening 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →emedicine.medscape.com
  • Chronic renal failureSevere 72/100Rated 72/100Source typeEstablished referenceIndependent sources1Every claim links to the page it came from, and stronger sources rate higher. Full methodology →emedicine.medscape.com

Reported in research and community sources — not exhaustive. Discontinue use and consult a healthcare professional if side effects occur.

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