Exact trademark owner identified
USPTO lists Doan Khanh Huy (INDIVIDUAL) in Viet Nam for the exact brand wordmark. This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this product.
Full record · 199874418087 · back to the summary
Therexa Probiotics 90 Billion CFU - 5-in-1 with Prebiotics, Postbiotics & Enzymes
Exact product checkedGTIN 00199874418087 · checked 2026-07-29
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How to read this report
What this is. We compare what a listing claims against what public records show — label arithmetic, barcode registries, NIH’s label catalog, FDA enforcement data, certification registries, and published research. Every statement below traces to one of those.
What the states mean. Confirmed = an outside source agrees. Contradicted = an outside source disagrees. Caution = something needs explaining. No data = we looked and found nothing — a gap, not a strike.
What it is not. A clean record is not an endorsement and never proof a product works. A thin record is not an accusation. We publish evidence and gaps; the conclusion is yours. Nothing here is medical advice.
Something wrong? Every figure is meant to be checkable — sources are named and linked. Send a correction and we’ll fix the record.
Every check we ran
Confirmed evidence
What checked out2
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Confirmed
Found on the brand's own store
The brand's store lists this exact barcode as “Probiotics 90 Billion CFU - 5-in-1 with Prebiotics, Postbiotics & Enzymes” (variant: Default Title) — identity confirmed across retailer listings.
Documented concerns
What needs caution0
These are documented contradictions or claims that need more evidence. They are separate from missing data.
No contradictions or product-specific cautions were found at this check depth.
Unresolved public record
What is still missing8
We looked for these signals but could not settle them from public sources. A gap is not a strike.
The listing doesn't publish enough to check the math
The saved listing evidence does not establish net weight, unit count, per-serving dose, servings per container, so the dose claim cannot yet be checked against serving arithmetic. This is a neutral evidence gap, not a pass or strike.
Review-count history: not available
Marketplace rating not shown★ — rating count unavailable. No exact-listing count history was available, so no review-pattern claim is made.
“Lab tested” claimed, but no lab or report named
The observed listing claims third-party testing without naming a lab or certifier. No product-bound report is saved, so the claim cannot be verified as stated. NSF, IFOS, USP, and Informed-Sport were not checked in this record.
Research context is available for the listed ingredients
Published sources describe how prebiotic fiber have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Fiber overview (MVMS context), PubMed search: inulin prebiotic randomized trial.
Public label filing not saved
We have not found a public label filing for this exact product. That is a gap in our records, not evidence that no filing exists.
No recall found — which is not the same as being tested
This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records.
Package and trademark records name different responsible entitie
The package says distributed by: Therexa Institute, 2093 PHILADELPHIA PIKE #5763 CLAYMONT, DE 19703. USPTO names Doan Khanh Huy as the exact wordmark owner. That can be a normal distributor, manufacturer, or licensing relationship; the saved records do not establish the relationship.
UPC valid, no independent record
Check digit passes; no third-party database record found yet. Coverage gaps are common — not a strike.
What to ask and check
What would settle the open questions
Why is this shown?
Everything we couldn’t verify is something a person can still ask about. Rather than leave gaps sitting as dead ends, we turn each one into a specific question — the exact document, citation, or number that would settle it — plus the things you can confirm yourself with the bottle in your hand.
Ask the brand or seller
1
Can you send the certificate of analysis (COA) for the lot number on my bottle?
A real COA names the testing laboratory, the test date, the lot it covers, and what was measured. “Third-party tested” with no document behind it is a marketing sentence.
2
Is this label filed with NIH’s Dietary Supplement Label Database (DSLD)?
Filing is voluntary, so absence proves nothing — but a filed label puts the full ingredient table on public record where anyone can read it.
3
Where are the ingredients sourced, and where is the product manufactured?
“Made in USA” can describe only the final bottling step. Ask which country the actives came from and whether the facility is audited.
4
What is the amount of each ingredient inside the proprietary blend?
A blend total tells you nothing about whether any single ingredient reaches a dose used in research. Brands may decline — that answer is informative too.
Most brands and sellers publish a contact route. A clear answer adds evidence to the record; no answer leaves the question open.
Check for yourself — no one’s permission needed
1
Compare the panel on the bottle in your hand to the one shown in this record.
Ours was read from listing photos and can contain reading errors. The physical label is the source of truth — if they disagree, tell us and we’ll correct the record.
2
Scan the barcode on the package and confirm it reads 199874418087.
A mismatch between the barcode on the box and the one on the listing is worth pausing over — it can indicate a different variant, a repack, or a counterfeit.
3
Check the lot number and expiry on the bottle against any COA you’re given.
A certificate that doesn’t name your lot doesn’t describe what you’re holding.
These are the open questions on this specific record — not a warning about the product, and not a suggestion to buy or avoid it. Getting them answered is how you decide for yourself.
What the listing promises — claim by claim
Why is this shown?
A listing’s promises are the reason people buy. Each one gets its own row: what was promised, what evidence would settle it, and what we could actually find. We never call a claim false — only whether proof proportionate to it exists on the public record.
| Claim | Status | What we found |
|---|---|---|
| Quality-testing claim “…LAB TESTED…” | Claimed, not verifiable We looked for: the observed listing, saved brand product page, any linked COA or test report; NSF, IFOS, USP, Informed-Sport were not queried | No named laboratory or lot-specific certificate was found for this exact product. The exact brand page names no testing issuer and links no product-bound report. NSF, IFOS, USP, and Informed-Sport were not checked in this record. This is a public-evidence limit, not a finding that testing did not occur. |
| Manufacturing claim “…GMP Certified…” | Partly supported We looked for: the facility registration or certificate behind the claim | “GMP-certified” describes factory processes, not what is in the bottle. The claim does not name a certifier or public register that a shopper can check. |
| Origin claim “…MADE IN USA” | Claimed, not verifiable We looked for: customs records or label filings showing where ingredients were sourced and where it was made | “Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product. |
| Benefit claim “…Therexa's HPMC enteric-coated capsule is designed to protect live probiotics through stomach acid and release them in the small intestine where they support digestive fu” | Partly supported We looked for: whether the ingredient doses on the label match the doses used in published research | Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed. |
“No evidence located” does not mean a claim is false — it means the seller has not put evidence proportionate to the claim on the public record, and we could not find any. Absence of proof is not proof of absence.
This label vs. the doses studied
Why is this shown?
An ingredient can be well-studied at one amount and barely studied at the amount in your bottle. This lines the label up against the doses researchers actually used. It answers ‘are these the same numbers?’ — never ‘should you take this?’
| Ingredient | Where this label sits | Reading |
|---|---|---|
| Organic Prebiotic Blend | shaded = doses used in studies (3 g–10 g) · bar = this label | 200 mg — below the studied range |
Matching a studied dose does not mean the product works, and missing it does not mean it fails — it shows whether the label and the research are talking about the same amounts. Not a recommendation to take any amount.
Verifiability profile — 3 of 6 public signals
✓ UPC / GTIN published✓ Supplement Facts visible in photos✓ Brand's own store found· Per-serving dose established — not published· Found in NIH's label catalog (DSLD) — not published· Third-party lab named or registry-certified — not published
What this listing gives the public to check. Publishing these signals doesn't prove quality — but withholding them means claims can only be taken on faith.
Identity
| UPC (barcode) — also our record ID | 199874418087 — via source listing UPC |
| Brand | THEREXA |
| Source listing identifier | B0H2YMQZ3P |
| Retailer listing title | THEREXA Probiotic Prebiotic Postbiotic Supplement - 90 Billion CFU, 5-… show full titleTHEREXA Probiotic Prebiotic Postbiotic Supplement - 90 Billion CFU, 5-in-1 Synbiotic with Digestive Enzymes for Women Men, Organic Prebiotic Fiber, Enteric Coated Capsules, 120 Day Supply |
| USPTO brand owner | Doan Khanh Huy · INDIVIDUAL · Viet Nam |
| Owner filed address | 135/17/66 Nguyen Huu Canh Street, 22 Ward, Binh Thanh District, Hochiminh, 700000, VIET NAM |
From the label (photo-read)
| Serving size | 1 Capsule |
| Servings per container | 120 |
| Pack statement | 120 Capsules |
| Badges printed on pack | LAB TESTED, DAIRY FREE, SUGAR FREE, GLUTEN FREE, 3rd Party Tested in the USA, GMP Certified, ARL, MADE IN USA |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Probiotic Blend | 150 mg | High clearly legible in the photo |
| Total Probiotic Activity | 90 Billion CFU | High clearly legible in the photo |
| Organic Prebiotic Blend | 200 mg | High clearly legible in the photo |
| Postbiotic Blend | 100 mg | High clearly legible in the photo |
| Digestive Enzyme Blend | 80 mg | High clearly legible in the photo |
| Digestive Support Blend | 40 mg | High clearly legible in the photo |
Claims printed on the packaging:
“5-IN-1” · “90 Billion CFU” · “Enteric Coated Capsules” · “Dietary Supplement” · “LAB TESTED” · “DAIRY FREE” · “SUGAR FREE” · “GLUTEN FREE”
Read by a vision model from 8 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Where it sells
| Seller | Price |
|---|---|
| Brand store (therexa.co) ↗ | $19.99 variant: Default Title — matching UPC/GTIN best price |
| Retailer listing ↗ | $22.99 checked Aug 02, 2026 — varies by variant/session; price history pending |
Brand store therexa.co: 7 supplement products (+2 merch items) — a single-category catalog.
Reference links for identification only — LookCloser has no affiliate relationships and earns nothing from any link on this page.
Ingredient science — NIH references
Probiotic — NIH ODS · MedlinePlus · PubMed (25,361) · strain-specific; label CFU at-manufacture vs at-expiry differ
Reference data from the NIH Office of Dietary Supplements, IOM Dietary Reference Intakes, and PubMed. A Tolerable Upper Intake Level is a documented reference figure, not a safety verdict — both the listed amount and the reference are shown for your own judgment. LookCloser gives no medical advice.
Related research & consistency
prebiotic fiber (inulin-type) — NIH ODS — Fiber overview (MVMS context) · PubMed search: inulin prebiotic randomized trial · WebMD search: inulin · ClinicalTrials.gov — 22 registered studies
ℹ Use pattern in research: daily use; effects build over weeks as gut flora shift.
These notes state where label numbers and marketing framing sit relative to published research — documentation for your own judgment, not medical advice. LookCloser does not advise for or against taking any supplement.
Record 199874418087 · built August 02, 2026 · lookcloser.ai · corrections@lookcloser.ai