Which vendors sell Vasoactive Intestinal Peptide (VIP) with independent COA testing?

10 vendors in the Merit Verified directory have independent COA evidence on file for Vasoactive Intestinal Peptide (VIP) — 20 COAs total. COA coverage and test dates are listed on the Vasoactive Intestinal Peptide (VIP) page at https://meritverified.org/peptides/vip.

How do I verify the quality of Vasoactive Intestinal Peptide (VIP) from a vendor?

To verify Vasoactive Intestinal Peptide (VIP) quality, look for an independent certificate of analysis (COA) from a third-party lab — not a lab the vendor owns or pays directly. The COA should state the tested compound, lot number, purity percentage (identity and concentration), and the lab's name. Cross-reference the lot number against the vendor's current stock. Merit Verified indexes COAs for Vasoactive Intestinal Peptide (VIP) at https://meritverified.org/peptides/vip so you can compare evidence across vendors before buying.

What is the regulatory status of Vasoactive Intestinal Peptide (VIP)?

Vasoactive Intestinal Peptide (VIP) is tracked in the Merit Verified registry. Regulatory status for research peptides in the US has been evolving — the FDA has reclassified a number of peptides out of the 503A compounding ingredient list since 2025. Merit Verified does not provide legal or regulatory advice; check official FDA sources or consult a licensed professional for the current status of Vasoactive Intestinal Peptide (VIP) in your jurisdiction.

Immune Modulator

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.

Where to buy · live market data

Who's worth your money for Vasoactive Intestinal Peptide (VIP)

Every current seller, ranked by independent evidence — Merit Score, latest COA purity, and live $/mg (size-normalized). Prices refresh daily. Rankings are never paid.

Top Merit pick

🇺🇸 Peptide Partners 99

Highest Merit Score (99) of 12 scored sellers

$4.95/mg

$990 · 200mg · 99.4% purity

2 COAs

Buy

Best value

🇺🇸 NG Peptide 86

Lowest $/mg among scored sellers

$4.50/mg

$45.00 · 10mg

no COAs yet

Buy

Most tested

🇺🇸 BioLongevity Labs 96

5 independent COAs on file

$14.99/mg

$74.97 · 5mg · 99.7% purity

5 COAs

Buy Code MERIT · 15% off

Average price

$8.12/mg

range $4.50–$14.99/mg

Sellers

from $40.00

45-day trend

+5.2%

vs 45-day avg $/mg

15 of 16 sellers have a current price· 1 stale hidden· 2 unverified hidden

	Vendor	Price	$/mg	vs avg	Purity	COAs	Merit
🇺🇸	Peptide Partners via Disclosed Labs · 1h ago	$990· 200mg	$4.95/mg	-39.1%	99.4%	2	99	Buy
🇺🇸	BioLongevity Labs via Disclosed Labs · 1h ago	$74.97· 5mg	$14.99/mg	+84.6%	99.7%	5	96	Buy Code MERIT · 15% off
🇺🇸	Profound Aminos via Disclosed Labs · 1h ago	$60.00· 10mg	$6.00/mg	-26.1%	99.1%	1	95	Buy
🇺🇸	Orbitrex Peptides via Disclosed Labs · 1h ago	$89.99· 10mg	$9.00/mg	+10.8%	—	—	95	Buy Code Orbitrex10 · 10% off
🇺🇸	NG Peptide via Disclosed Labs · 1h ago	$45.00· 10mg	$4.50/mg	-44.6%	—	—	86	Buy
🇺🇸	Simple Peptide via Disclosed Labs · 1h ago	$52.00· 5mg	$10.40/mg	+28%	99.2%	1	85	Buy
	Peptide Supply Co. via Disclosed Labs · 1h ago	$450· 100mg	$4.50/mg	-44.6%	—	—	83	Buy
	Modern Research Peptides via Disclosed Labs · 1h ago	$59.99· 10mg	$6.00/mg	-26.1%	—	—	82	Buy
	True Peptide via Disclosed Labs · 1h ago	$60.00· 5mg	$12.00/mg	+47.7%	—	—	82	Buy Code MERIT · 15% off
🇺🇸	Blank Peptides via Disclosed Labs · 1h ago	$75.00· 10mg	$7.50/mg	-7.7%	—	—	81	Buy affiliate

Top Merit pick

🇺🇸 Peptide Partners
via Disclosed Labs · 1h ago
99

$4.95/mg -39.1% vs avg

$990

200mg

99.4% purity 2 COAs

Buy
🇺🇸 BioLongevity Labs
via Disclosed Labs · 1h ago
96

$14.99/mg +84.6% vs avg

$74.97

5mg

99.7% purity 5 COAs

Buy Code MERIT · 15% off
🇺🇸 Profound Aminos
via Disclosed Labs · 1h ago
95

$6.00/mg -26.1% vs avg

$60.00

10mg

99.1% purity 1 COA

Buy
🇺🇸 Orbitrex Peptides
via Disclosed Labs · 1h ago
95

$9.00/mg +10.8% vs avg

$89.99

10mg

no purity

Buy Code Orbitrex10 · 10% off
🇺🇸 NG Peptide
via Disclosed Labs · 1h ago
86

$4.50/mg -44.6% vs avg

$45.00

10mg

no purity

Buy
🇺🇸 Simple Peptide
via Disclosed Labs · 1h ago
85

$10.40/mg +28% vs avg

$52.00

5mg

99.2% purity 1 COA

Buy
Peptide Supply Co.
via Disclosed Labs · 1h ago
83

$4.50/mg -44.6% vs avg

$450

100mg

no purity

Buy
Modern Research Peptides
via Disclosed Labs · 1h ago
82

$6.00/mg -26.1% vs avg

$59.99

10mg

no purity

Buy
True Peptide
via Disclosed Labs · 1h ago
82

$12.00/mg +47.7% vs avg

$60.00

5mg

no purity

Buy Code MERIT · 15% off
🇺🇸 Blank Peptides
via Disclosed Labs · 1h ago
81

$7.50/mg -7.7% vs avg

$75.00

10mg

no purity

Buy affiliate

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.

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Compound reference

About Vasoactive Intestinal Peptide (VIP)

CAS

40077-57-4

Molecular formula

C147H237N43O43S

Sequence

HSDAVFTDNYTRLRKQMAVKKYLNSILN

Typical dose range

50 mcg per nostril (400 mcg/day) intranasal 4x daily (Shoemaker/CIRS protocol); 25–50 mcg/kg inhaled q4–6h for pulmonary research

Half-life

~1–2 minutes (plasma, IV/physiological conditions)

Independent evidence

COAs for Vasoactive Intestinal Peptide (VIP)

20 third-party tests across 10 vendors. Each card links to the full report.

All 20 COAs for Vasoactive Intestinal Peptide (VIP) →

Measured purity over time

Vasoactive Intestinal Peptide (VIP)

Who's worth your money for Vasoactive Intestinal Peptide (VIP)

Watch Vasoactive Intestinal Peptide (VIP)

About Vasoactive Intestinal Peptide (VIP)

COAs for Vasoactive Intestinal Peptide (VIP)

20 citations indexed for Vasoactive Intestinal Peptide (VIP)

Vasoactive Intestinal Peptide (VIP)-Secreting Neuroblastic Tumors in Children Presenting With Chronic Secretory Diarrhea: A Report of Two Cases

Acupuncture for Postoperative Gastric Emptying Delay

Vasoactive Intestinal Peptide (VIP) in COVID-19 Therapy-Shedding of ACE2 and TMPRSS2 via ADAM10

Vasoactive Intestinal Peptide (VIP) and its Receptors in Adipose Tissue: Implications for Cold Stress Adaptation

Efficacy and Safety of Stapokibart in Non-Allergic Rhinitis With Eosinophilia Syndrome

Effect of Non-invasive Neuromodulation on the Quality of Intestinal Cleansing