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All products discussed on this site are Research Use Only (RUO) compounds intended strictly for laboratory research. Nothing here is medical advice, and these products are not for human or veterinary use.

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VIP: Research Profile, Dosages & Supplier Prices

Neuropeptide research · Lyophilized powder · Also known as: Vasoactive Intestinal Peptide, Vasoactive Intestinal Polypeptide, Aviptadil

VIP is a neuropeptide research compound with a molecular weight of 3325.8 g/mol and a research half-life of ~1-2 minutes (plasma); longer inhaled. VIP (vasoactive intestinal peptide) is a 28-amino-acid neuropeptide of the secretin/glucagon family, originally isolated from intestine but now known to be widely distributed through the nervous, immune, cardiovascular and pulmonary systems. It is a potent vasodilator, bronchodilator and immunomodulator with an unusually broad physiological footprint.

Research Use Only (RUO). Not for human or veterinary use. Not medical advice.

SequenceHis-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
FormulaC147H238N44O42S
Mol. weight3325.8 g/mol
Half-life~1-2 minutes (plasma); longer inhaled
Forms soldLyophilized powder

What is VIP?

A synthetic form (aviptadil) has been investigated clinically for pulmonary hypertension, ARDS, sarcoidosis and critical COVID-19, typically by inhalation to exploit its short plasma half-life. In research, VIP is a key tool for studying VPAC1/VPAC2 receptor signaling, circadian rhythm regulation in the suprachiasmatic nucleus, and immune tolerance - it shifts immune responses toward anti-inflammatory Th2/Treg profiles. Its extreme plasma instability (half-life of about a minute) is the central experimental challenge.

Mechanism of Action (Research Context)

Agonist at VPAC1 and VPAC2 Gs-coupled receptors, raising cAMP. Produces vasodilation, bronchodilation, increased secretion, and immunomodulation (suppressed Th1 responses, induced regulatory T cells). Degraded rapidly by neutral endopeptidases.

Research Areas

VPAC receptor pharmacologyPulmonary hypertension and ARDS modelsCircadian rhythm regulationImmune tolerance and Th2/Treg shiftingVasodilation research

VIP Dosages in Research

1mg5mg vials

Clinical aviptadil research used inhaled or IV dosing in microgram ranges given the ~1-minute plasma half-life. Research-context only.

Dosage information is a summary of published laboratory research and is provided for informational purposes only. These compounds are not for human use.

Storage & Handling

Lyophilized: -20C desiccated. Reconstituted: 2-8C and use quickly - among the least stable catalog peptides in solution; aliquot and freeze at -80C for longer storage.

VIP Supplier Price Comparison

SupplierProductPriceScore
Peptides, Steroid Powders & Biochemical Raw Materials VIP Peptide (Vasoactive Intestinal Peptide) 5mg / 10mg Lyophilized Powder – Research Peptide Material 5mg / 10mg — ★ 1.8
Wholesale high VIP Peptide 5-10mg Raw material wholesale 5-10mg $10.00 ★ 2.6
Bangkok Peptide Center VIP 10mg 10mg $20.00 ★ 1.6
Pure Peptides UK VIP 10mg 10mg $28.99 ★ 2.7
Research Peptides UK Adonis VIP – Research Peptide (RUO) $29.99 ★ 2.0
Home VIP Peptides $37.00 ★ 1.8
AIO Peptides: Buy High VIP 5mg 5mg $48.00 ★ 2.0
Home VIP 5mg 5mg $48.00 ★ 2.9
Advanced Peptide Research VIP $49.99 ★ 1.9
Research Peptides & Laboratory Materials VIP 5mg $52.00 ★ 2.6
Go Alpha Labs VIP (5mg) 5mg $52.99 ★ 2.9
Home VIP | 10mg | Research Use Only 10mg $54.99 ★ 2.2
Research Peptides in the USA VIP (Vasoactive Intestinal Peptide) Peptide $57.00 ★ 2.1
Home VIP 10mg 10mg $58.00 ★ 2.5
Ascension Peptides – Your premiere source for research peptides VIP (10MG) 10mg $58.00 ★ 2.3
Atomik Labs Peptides: Buy High VIP – 7.5mg 7.5mg $59.00 ★ 2.3
Just Compounds VIP $59.99 ★ 1.7
Home VIP Peptide 5mg Online. 5mg $60.00 ★ 2.3
Modern Aminos: USA's Trusted Store for Quality Research Chemicals VIP (Vasoactive Intestinal Peptide) $60.00 ★ 3.0
Home Core Peptides VIP (6mg) 6mg $64.00 ★ 2.3
Home VIP $65.00 ★ 1.6
Home VIP 10mg 10mg $68.00 ★ 1.9
24Peptides VIP (Vasoactive Intestinal Peptide) 10mg 10mg $69.00 ★ 2.2
Buy Peptides for Scientific Research VIP 5mg 5mg $69.99 ★ 2.2
Peptides Canada VIP (Vasoactive Intestinal Peptide) 5 mg 5mg $69.99 ★ 2.1
Research Peptides — Third VIP10 (10mg) 10mg $70.99 ★ 1.9
Home VIP 10mg 10mg $74.00 ★ 1.9
Elitecare Pharmacy – Advanced Peptide Solutions. Precision You Can Trust. VIP $78.00 ★ 1.8
American Peptide Innovations VIP10 (10mg) 10mg $80.00 ★ 1.9
Ascension Peptides VIP 10mg Research Peptide 10mg $80.00 ★ 1.7
Home VIP Peptide – 5mg-10mg Bulk supply 5mg-10mg $81.00 ★ 2.2
RUO peptides — Amino Connection VIP $84.00 ★ 1.7
Aavant Research Peptide VIP $85.00 ★ 2.3
Azoth Peptides VIP $85.00 ★ 1.7
American Select Peptides – Research peptides and analytical standards for qualified laboratories. VIP $89.00 ★ 1.7
Meridian Compounds – Research Compounds VIP $95.00 ★ 1.6
Apex Gains LLC VIP (Vasoactive Intestinal Peptide) $100.00 ★ 2.1
808 Peptides LLC VIP10 (10mg) 10mg $108.00 ★ 1.9
LUXE AMINOS VIP 10mg 10mg $119.00 ★ 2.8
Verified Wholesale Peptides VIP (Vasoactive Intestinal Peptide) | 10mg x 10 Vials Kit | >99% Purity 10mg $130.00 ★ 2.0
Home VIP (10MG) 10MG $149.00 ★ 1.8
Age Verification VIP 10MG 10MG $150.00 ★ 1.8
Nature's Evolution LLC VIP $154.00 ★ 1.8
Alpha Amino Labs VIP10 (10mg) 10mg $190.00 ★ 1.9
Home VIP $198.00 ★ 1.8
Buy Australia Research Peptides VIP Peptide $214.00 ★ 1.9
Ascend Peptides VIP $227.99 ★ 1.9
Home VIP 10mg (10 vials/kit) 10mg $285.00 ★ 1.8
Go Alpha Labs VIP (5mg) (10 Vials) 5mg $399.99 ★ 2.9

VIP FAQ

Pulmonary hypertension, ARDS and lung inflammation (as inhaled aviptadil), circadian rhythm biology, and immune modulation - VIP shifts responses toward anti-inflammatory profiles.
Its plasma half-life is about one minute due to rapid enzymatic degradation. Inhalation delivers it directly to lung tissue before systemic breakdown.
98%+ HPLC purity and mass spec identity at 3325.8 Da. Given its instability, proper cold-chain handling from supplier to lab is part of quality.
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