Buying Guide·3 min read

Buy VIP: Compare 4 Vendors, From $58

Compare 4 VIP vendors side by side: from $58 a vial, best value $5.80/mg. Codes save up to 50%. Vial sizes, COA status, real cost per week.

Where to Buy VIP

VIP (vasoactive intestinal peptide, sold synthetically as aviptadil) has accumulated published trial data in sarcoidosis and COVID-19 — most notably a Phase 2 inhaled VIP trial in 20 sarcoidosis patients showing reduced TNF-α and improved cough/dyspnea over 4 weeks (Prasse et al. 2010).

Research-context information only. Vasoactive intestinal peptide (VIP) is a research peptide. Protocols, doses, and reactions reported below come from published research and self-reported community sources. This article reports what has been documented, not what should be done. Consult a licensed physician for personal medical decisions.

The buying problem mirrors LL-37: 28-residue length pushes synthesis cost, vendor competition is limited, and per-mg pricing is high.

This guide covers documented per-mg pricing, COA verification, vial size selection, and red flags. For dosing context, see the VIP dosing guide.

This is not a ranked vendor list — for that, see our Best VIP Vendors comparison.

Understanding VIP Pricing

Current Market Pricing (2026)

VIP market snapshot
Live from the offers we track · Prices checked Oct 10, 2026, 5:17 AM CT
Vendors tracked
4
Products tracked
4 vials · 1 size
In stock now
4 of 4
Lowest $/mg
$4.95/mg list · $2.90/mg after coupon
Median $/mg
$5.80/mg list · $4.84/mg after coupon
90-day stockout rate
0.0% of offer-daysacross vendors listed on this page
Median $/mg trend
30d −20.0% · 90d −20.0%
Median list price by vial size, in-stock offers
SizeMedian priceMedian $/mgVials
10 mg$58$5.80/mg4
Table: in-stock vials, list price. After-coupon applies our partner code or link discount.How we collect thisCompare vendors

Cost Per Month at Common Doses

Daily Dose Monthly Mass
50 mcg/day 1.5 mg
100 mcg/day 3 mg
200 mcg/day 6 mg

Monthly cost is the monthly mass times the current median $/mg for the vial size, shown live in the market snapshot above.

For current vendor-specific pricing, see our Best VIP Vendors comparison.

Partner discount: Glacier Aminos' 10% discount is included in the after-coupon $/mg in the market snapshot above. Get the code →

How to Verify VIP Quality

COA verification process

What a COA Should Include

Identity Confirmation

  • Mass spec confirming 3,326 Da for VIP
  • Sequence verification — 28-residue sequence
  • C-terminal amidation confirmed

Purity Testing

  • HPLC purity at 98%+ (challenging at 28 residues — 95-98% more common)
  • Single dominant peak; truncation byproducts visible as smaller secondary peaks
  • Water content (Karl Fischer) under 8%

Contamination Testing

  • Endotoxin levels
  • Residual solvent analysis
  • Heavy metals screening

How to Verify a COA Is Legitimate

  1. Third-party lab — Janoshik, MZ Biolabs, Colmaric most-cited
  2. Verifiable task number
  3. Recent date (within 6 months)
  4. Batch match
  5. 3,326 Da mass confirmation — significantly different mass indicates truncated VIP fragment

Red Flags to Avoid

  • No COA available
  • Only in-house testing
  • Prices below $5/mg — likely truncated fragment substitution
  • No mass spec
  • HPLC showing prominent secondary peaks without explanation
  • No contact information or cryptocurrency only

Top VIP Vendors

Ranked by price, COA availability, and reputation

1
Ascension PeptidesCOA
10/10
10mg$5.80/mg
2
Ion PeptideCOA
9.7/10
10mg$7.90/mg
3
Glacier AminosCOA
9.3/10
10mg$4.95/mg

Choosing the Right Vial Size

Vial size comparison

The 28-Day Stability Rule

VIP reconstituted with bacteriostatic water and refrigerated is documented stable for roughly 28 days.

Vial Size At 50 mcg/day At 100 mcg/day At 200 mcg/day
1mg 20 days 10 days 5 days
5mg 100 days ⚠️ 50 days ⚠️ 25 days
10mg 200 days ⚠️ 100 days ⚠️ 50 days ⚠️

⚠️ = exceeds 28-day reconstitution stability window

Practical implication: Most vial sizes at typical doses exceed the 28-day window — staged reconstitution or smaller 1mg vials are common.

Vial Size by Protocol

Standard 50-100 mcg/day:

  • 5mg vial with staged reconstitution
  • Or 1mg vials for shorter use windows

Vendor Evaluation Methodology

Price Competitiveness (40%)

Normalize to cost per milligram.

COA & Testing (30%)

  • Third-party labs
  • Recent (within 6 months)
  • Mass spec confirming 3,326 Da

Reputation (30%)

Community feedback, shipping reliability.

Shipping and Storage

Storage Guidelines

State Temperature Duration
Lyophilized Refrigerated (2-8°C) 12+ months
Lyophilized Frozen (-20°C) 24+ months
Reconstituted (BAC water) Refrigerated ~28 days

Where to Buy

1

Nura Peptide

10.0/1030% OFF · code thepeptidecatalog

Niche-format vendor — oral capsule peptides, pre-mixed nasal solutions, and a rare Reta + Cagrilintide combo blend, all 30% off with code thepeptidecatalog.

2

Ascension Peptides

9.5/1050% OFF · code THEPEPTIDECATALOG

Lowest effective pricing in the market after an exclusive 50% off through our link. Independent COA testing across the catalog.

3

Ion Peptide

9.2/1015% OFF · code thepeptidecatalog

Strong blend lineup and competitive singles pricing. Pre-mixed combinations simplify reconstitution and dosing.

4

Glacier Aminos

9.3/1010% OFF · code thepeptidecatalog

Research peptide vendor with COA documentation and an exclusive 10% off discount.

5

EZ Peptides

9.6/1010% OFF · code thepeptidecatalog

Broadest verified catalog with QR-linked COAs on every product. Fast domestic shipping and a 30-day guarantee.

6

Swiss Chems

9.2/1010% OFF · code THEPEPTIDECATALOG

Broad catalog with international shipping — useful for researchers outside the US.

VendorCodeDiscountView Deal
Nura Peptide30% offView deal →
Ascension Peptides50% offView deal →
Ion Peptide15% offView deal →
Glacier Aminos10% offView deal →
EZ Peptides10% offView deal →
Swiss Chems10% offView deal →
Bacteriostatic water vial — 0.9% benzyl alcohol multi-dose
Bac Water Made for Peptides
Don't risk a $300 peptide on generic bac water.
Most cloudy reconstitutions trace back to one thing — and it isn't the peptide. Sterile, non-pyrogenic, 0.9% benzyl alcohol — formulated for peptide reconstitution, not repackaged from generic stock.
✓ 0.9% benzyl alcohol✓ Made for peptides✓ 30 mL multi-dose
Shop bac water made for peptides

Frequently Asked Questions

Is VIP legal to buy?
Vasoactive intestinal peptide (VIP) is sold as a research peptide labeled 'not for human consumption.' Aviptadil (synthetic VIP) has been studied in COVID-19 and sarcoidosis trials but is not FDA-approved. Purchasing research peptides is legal in most US jurisdictions.
How much does VIP cost per month?
Community subcutaneous protocols use 50-200mcg/day. Monthly mass at 100mcg/day is 3mg. Current vial prices by size are in the live market snapshot on this page; monthly cost is that monthly mass times the per-mg price of the vial size used.
Why is VIP priced higher than most peptides?
VIP is a 28-residue peptide — at the upper end of cost-effective synthesis. Limited vendor competition and small market size also push pricing higher. Per-mg pricing runs well above shorter peptides; current figures are in the market snapshot on this page.
What vial size should I buy?
5mg vials are the most-cited size given the typical low daily doses. 10mg vials require staged reconstitution at most community protocols.
What purity should I look for in VIP?
Third-party HPLC at 98%+ purity, plus mass spec confirming 3,326 Da. VIP is a 28-residue peptide with C-terminal amidation. At 28 residues, truncation byproducts are common synthesis impurities.
Can I buy VIP from a compounding pharmacy?
Limited. Aviptadil is not FDA-approved despite Phase 2 trial work in sarcoidosis and COVID-19. Some specialty pharmacies have offered intranasal or nebulized VIP but the supply chain is restricted. Research vendors are the documented option.

References

Citation Topic PMID
Prasse A, et al., Am J Respir Crit Care Med (2010) Inhaled VIP Phase 2 trial in sarcoidosis: TNF-α reduction and cough/dyspnea improvement 20442436

This article is for educational and informational purposes only. It is not medical advice and should not be used to diagnose, treat, or prevent any condition. Consult a licensed healthcare provider before using any peptide.