Larazotide
A gut tight-junction peptide studied in intestinal-permeability ('leaky gut') and celiac research.
Get told when a price moves or a lab test changes.
Observed median price
$169
Every observation
| Date | Observed |
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| $140.50 | |
| $169.00 | |
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| $140.50 | |
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| $111.99 | |
| $111.99 |
Not enough listings with 30 days of checks to summarise a change — 1 of 2 qualify so far.
2
Active listings
0
Independent lab tests
$112–$169
Observed price range
4
Known aliases
Understand this compound
What is Larazotide?
In clinical trialsa.k.a. Larazotide acetate, INN-202A molecule that helps tighten the seams between the cells lining your gut. Studied in celiac disease for calming so-called leaky gut.
Good to know: It is studied as an adjunct to, not a replacement for, a gluten-free diet, and has not been shown to fully prevent gluten-triggered intestinal damage.
How does Larazotide work?
The science
An eight-amino-acid peptide that acts as a zonulin antagonist, helping regulate tight-junction proteins in the intestinal epithelium to reduce gut permeability.
Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.
What is Larazotide researched for?
Studied as an adjunct therapy for celiac disease to reduce gluten-triggered intestinal permeability and symptoms.
- Gut healthStudied in gastrointestinal research, including gut-lining integrity and inflammatory-condition models.
How far has the research gone?
In clinical trials — has reached Phase 3 trials for celiac disease, with a favorable safety and tolerability profile across Phase 1-3 studies.
Where the science stands — an approved drug is not the same as the research-grade material a vendor sells, which is unregulated regardless.
What should I check before buying?
- Independent purity. Look for a third-party COA (Janoshik or MZ) showing a measured purity — not just a number the vendor typed.
- Batch match. The strongest evidence is a certificate for the exact batch you’ll receive, attributed to this vendor — check the cross-verification on the listing.
- Vendor reputation. See how the vendor is talked about in the community before trusting a new name.
Research context only — VialGrade never gives dosing, medical, or human-use guidance.
Current market
The Larazotide market
Every Larazotide listing we track — 2 in all. The standout picks first where the evidence supports them, then the full table, ranked by what a milligram really costs wherever the vendor published a strength we can read.
Open full marketCompare by real cost
Every Larazotide listing, cheapest per mg first
Sticker prices hide the size, so listings are ranked by what a milligram actually costs — with independently tested purity where it exists. All 2 are here: the last 1 is a listing whose vendor never published a strength we can read, so it has no per-mg figure to sort on.
| # | Vendor | Size | Price | Per mg | Tested purity | Real $/active mg | |
|---|---|---|---|---|---|---|---|
| 1 | Behemoth LabzUnavailable | 10mg total | $112 | $11.2/mg | — | — | View |
| Listed, but not rankable — no published strength to price per mg | |||||||
| — | Simple Peptide | 1 vial | $169 | no size published | — | — | View |
Open the full Larazotide market
Real $/active mg divides the price-per-mg by the measured purity — the honest cost of the actual peptide, so a 90%-pure vial isn’t compared as if it were 99%. Too cheap? flags a listing far below the market rate — often underdosing or a fake, not a deal. The crown marks the cheapest non-outlier; best value marks the lowest real cost per active mg. A vendor shown as Unavailable or Low stock is priced here but not currently buyable.
What the research says
Scientific evidence & regulatory status
What the published literature actually shows about Larazotide — separate from any vendor’s marketing. Each finding links to its paper. This is education, not medical or dosing advice.
Regulatory status
No FDA-approved drug
Not FDA-approved; an investigational oral peptide for celiac disease. Its Phase 3 trial (NCT03569007) was terminated by the sponsor in 2022, and no marketing application has been approved anywhere.
Research-use-only — not FDA-approved
Sold “for research use only,” this compound is not FDA-approved for human use and has not been evaluated for safety, purity, or sterility in people. It is generally not a scheduled controlled substance, so buying it as a research chemical is typically not itself a drug crime — but marketing or using it as a drug is not lawful, and it is not a dietary supplement.
General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.
Research notes aren’t product proof
Research summaries describe published literature and market data only. They do not establish the identity, quality, safety, or legal status of any listed physical product.