Vasoactive Intestinal Peptide (VIP)
Also known as: VIP
Vasoactive Intestinal Peptide (VIP) is a 28-amino acid neuropeptide of the secretin/glucagon family, widely distributed in the CNS and peripheral nervous system. It is a potent vasodilator, bronchodilator, and immunomodulator. Synthetic VIP (aviptadil) has been investigated in clinical trials for COVID-19-associated acute respiratory failure; it is NOT FDA-approved. Intranasal compounded VIP is used off-label in the controversial 'CIRS' (Chronic Inflammatory Response Syndrome) / mold-illness protocol popularized by Ritchie Shoemaker — CIRS is not a mainstream medical diagnosis.
Pricing for Vasoactive Intestinal Peptide (VIP)
Live vendor pricing, normalized to $/mg so sizes compare fairly — fused with each seller's Merit trust score and latest independent COA purity. Prices refresh daily.
Average price
$9.08/mg
range $3.90–$22.00/mg
Sellers
40
from $36.00
45-day trend
+8.1%
vs 45-day avg $/mg
34 of 40 sellers have a current price· 26 stale listings hidden (not seen in 7 days)
Top Merit pick
🇺🇸 Peptide Partners99via Disclosed Labs · just now
$4.95/mg -45.5% vs avg$990
200mg
99.4% purity 2 COAs- 🇺🇸 BioLongevity Labs96
via Disclosed Labs · just now
$14.99/mg +65.1% vs avg$74.97
5mg
- 🇺🇸 Profound Aminos95
via Disclosed Labs · just now
$7.00/mg -22.9% vs avg$70.00
10mg
99.1% purity 1 COA - 🇺🇸 Orbitrex Peptides95
via Disclosed Labs · just now
$7.50/mg -17.4% vs avg$74.99
10mg
no purity - Peptide Supply Co.83
via Disclosed Labs · just now
$4.50/mg -50.4% vs avg$450
100mg
no purity - 🇺🇸 OROS Research79
via Disclosed Labs · just now
$6.00/mg -33.9% vs avg$59.99
10mg
no purity - 🇺🇸 NG PeptideUnscored
via Disclosed Labs · just now
$4.50/mg -50.4% vs avg$45.00
10mg
no purity - peptidetech.isUnscored
via Disclosed Labs · just now
$5.00/mg -45% vs avg$49.99
10mg
no purity
Prices observed from public storefronts (last 24h), normalized to $/mg. "Evidence" is Merit's 0–100 Merit Score, derived only from observable verification evidence (methodology on /about); "Purity" is the latest independent COA. Some buy links are affiliate links — Merit may earn a commission at no extra cost to you, and where a vendor offers one, the code shown gets you a discount at their checkout. Affiliate status never affects price data, ranking, or the Merit Score (full policy on /disclosure). Research use only.
COAs for Vasoactive Intestinal Peptide (VIP)
19 third-party tests across 9 vendors. Each card links to the full report.
For
Vasoactive Intestinal Peptide (VIP)
by Crush Research· batch CRVIP-10-2604-1
For
Vasoactive Intestinal Peptide (VIP)
by Simple Peptide· batch VP5-032026-1
For
Vasoactive Intestinal Peptide (VIP)
by BioLongevity Labs· batch 31-3-46041
For
Vasoactive Intestinal Peptide (VIP)
by Mile High Compounds· batch VIP-010-MH-01
For
Vasoactive Intestinal Peptide (VIP)
by Glacier Aminos· batch VIP10GA01
For
Vasoactive Intestinal Peptide (VIP)
by BioLongevity Labs· batch 31-3-45951
For
Vasoactive Intestinal Peptide (VIP)
by BioLongevity Labs· batch cmojb76ku0193kirx6m3i9gri
For
Vasoactive Intestinal Peptide (VIP)
by Skye Peptides· batch VIP25-05-002
For
Vasoactive Intestinal Peptide (VIP)
by Peptide Partners· batch VP20250511
For
Vasoactive Intestinal Peptide (VIP)
by Profound Aminos· batch 2025-05-19
For
Vasoactive Intestinal Peptide (VIP)
by Verified Peptides· batch cmojb6azj012wkirxcsj3o26v
For
Vasoactive Intestinal Peptide (VIP)
by Glacier Aminos· batch VIP10GA-02
Purity not on file
For
Vasoactive Intestinal Peptide (VIP)
by Mile High Compounds· batch VIP-010-MH-01
Purity not on file
For
Vasoactive Intestinal Peptide (VIP)
by Mile High Compounds· batch VIP-010-MH-01
Purity not on file
For
Vasoactive Intestinal Peptide (VIP)
by BioLongevity Labs· batch 31-3-45951
Purity not on file
For
Vasoactive Intestinal Peptide (VIP)
by BioLongevity Labs· batch cmojb76h30192kirxwdp6g317
Purity not on file
For
Vasoactive Intestinal Peptide (VIP)
by Skye Peptides· batch VIP25-05-002
Purity not on file
For
Vasoactive Intestinal Peptide (VIP)
by Skye Peptides· batch VIP25-05-002
Purity not on file
For
Vasoactive Intestinal Peptide (VIP)
by Peptide Partners· batch cmojb223b003fkirx4s4gkb1s
20 citations indexed for Vasoactive Intestinal Peptide (VIP)
Study · 2025
Vasoactive Intestinal Peptide (VIP) in COVID-19 Therapy-Shedding of ACE2 and TMPRSS2 via ADAM10
Patients infected with SARS-CoV-2 may develop mild respiratory symptoms but also Acute Respiratory Distress Syndrome (ARDS). Additionally, severe systemic inflammation contributes to morbidity and mortality.
animal · 2025
Vasoactive Intestinal Peptide (VIP) and its Receptors in Adipose Tissue: Implications for Cold Stress Adaptation
Adipose tissue represents an organ that is highly dynamic and contributes toward vital survival events such as immune responses, lactation, metabolism fuel, and thermogenesis.
rct · 2025
Efficacy and Safety of Stapokibart in Non-Allergic Rhinitis With Eosinophilia Syndrome
The goal of this clinical trial is to learn if Stapokibart (CM310) works to treat Non-Allergic Rhinitis with Eosinophilia Syndrome (NARES) in adults. It will also learn about the safety of CM310. The main questions it aims to answer are: Does drug CM310 relieve the symptoms of participants?
Study · 2024
Increased Vasoactive Intestinal Peptide (VIP) in polycystic ovary syndrome patients undergoing IVF
Introduction Polycystic ovary syndrome (PCOS) is a common multifactorial and polygenic disorder of the endocrine system, affecting up to 20% of women in reproductive age with a still unknown etiology.
animal · 2024
The role of vasoactive intestinal peptide (VIP) in atropine-related inhibition of the progression of myopia
Objective This study aimed to investigate the potential involvement of vasoactive intestinal polypeptide (VIP) in myopia development and its contribution to the mechanism of action of the anti-myopia drug, atropine.
animal · 2024
Distribution of vasoactive intestinal peptide (VIP) immunoreactivity in the rat pallial and subpallial amygdala and colocalization with γ-aminobutyric acid (GABA)
The amygdaloid complex, also known as the amygdala, is a heterogeneous group of distinct nuclear and cortical pallial and subpallial structures. The amygdala plays an important role in several complex functions including emotional behavior and learning.