Exact trademark owner identified
USPTO lists Master Supplements, Inc (CORPORATION) in MINNESOTA, USA 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 · 804879522317 · back to the summary
Master Supplements TruBifido - 30 Capsules - Powerful Probiotic for Colon Health & Energy
Exact product checkedGTIN 00804879522317 · checked 2026-07-27
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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.
Panel, decoded
What the label discloses
6listed rows
5separately quantified
1combined blend totals
The listing-image panel publishes 5 separately ingredients with amounts and 1 combined blend total. Ingredients inside a blend do not have separate amounts.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Proprietary Probiotic Blend | 130.64 mg | — | |
| Bifidobacterium lactis (Strains BL-04, UABla-12) | 21 billion CFU * | — | |
| Bifidobacterium infantis (Strain Bi-26) | 2 billion CFU * | — | |
| Bifidobacterium bifidum (Strains BB-06, UABB-10) | 2 billion CFU * | — | |
| Bifidobacterium lactis (Strain Bi-07) | 3 billion CFU * | — | |
| Bifidobacterium lactis (Strain HNO19) | 2 billion CFU * | — |
FDA rules (21 CFR 101.36) require the amount of each dietary ingredient per serving unless hidden in a listed “proprietary blend” (legal, but a transparency yellow flag). A label stating no amount at all is non-compliant — a checkable red flag. This panel states amounts; the open question is whether those listed amounts are independently verified and how they compare with relevant research.
vision:google/gemini-2.5-flash Amounts are shown as listed panel data, not independently lab-tested contents.
Every check we ran
Confirmed evidence
What checked out1
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Confirmed
Documented concerns
What needs caution1
These are documented contradictions or claims that need more evidence. They are separate from missing data.
Unresolved public record
What is still missing6
We looked for these signals but could not settle them from public sources. A gap is not a strike.
Multi-ingredient formula — panel read, serving weight unknown
We read the full Supplement Facts panel from the listing-image panel (below), but the label doesn’t state a serving weight, so the arithmetic can’t run. A gap in the label’s information, not evidence of a problem.
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.
This item belongs to a catalog variation family
The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.
180-day review-count history is on file
Exact-listing history records written-review counts from 26 on 2025-09-14 to 29 on 2026-02-26 (net +3). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
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
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.
2
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 804879522317.
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 |
|---|---|---|
| Benefit claim “Master Supplements TruBifido - 30 Capsules - Powerful Probiotic for Colon Health & Energy - Immune Booster, Supports Regularity - Gluten Free - 30 Servings…” | Not checked yet We looked for: whether the ingredient doses on the label match the doses used in published research | Ingredient-level evidence for this formula isn’t in our knowledge base yet. Recorded as not checked yet — not as a negative. |
“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.
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 | 804879522317 — via source listing UPC |
| Brand | TruBifido |
| Source listing identifier | B01MSYS1T1 |
| Retailer listing title | Master Supplements TruBifido - 30 Capsules - Powerful Probiotic for Co… show full titleMaster Supplements TruBifido - 30 Capsules - Powerful Probiotic for Colon Health & Energy - Immune Booster, Supports Regularity - Gluten Free - 30 Servings |
| USPTO brand owner | Master Supplements, Inc · CORPORATION · MINNESOTA, USA |
| Owner filed address | 1891 Steiger Lake Lane, Victoria, Minnesota 55386, UNITED STATES |
From the label (photo-read)
| Serving size | one capsule |
| Servings per container | 30 |
| Pack statement | 30 CAPSULES |
| Badges printed on pack | GLUTEN FREE, DAIRY FREE, SOY FREE, NON-GMO, NUT FREE, VEGAN |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Proprietary Probiotic Blend | 130.64 mg | High clearly legible in the photo |
| Bifidobacterium lactis (Strains BL-04, UABla-12) | 21 billion CFU * | High clearly legible in the photo |
| Bifidobacterium infantis (Strain Bi-26) | 2 billion CFU * | High clearly legible in the photo |
| Bifidobacterium bifidum (Strains BB-06, UABB-10) | 2 billion CFU * | High clearly legible in the photo |
| Bifidobacterium lactis (Strain Bi-07) | 3 billion CFU * | High clearly legible in the photo |
| Bifidobacterium lactis (Strain HNO19) | 2 billion CFU * | High clearly legible in the photo |
Claims printed on the packaging:
“SUPPORTS REGULARITY†” · “30 BILLION CFU” · “PATENTED PREBIOTIC” · “DEEP DELIVERY” · “DIETARY SUPPLEMENT” · “Take 1 capsule daily.” · “Take 2 capsules daily for additional digestive support.” · “Separate by 2 hours.”
Read by a vision model from 7 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Where it sells
| Seller | Price |
|---|---|
| Retailer listing ↗ | $37.46 checked Jul 27, 2026 — varies by variant/session; price history pending |
Reference links for identification only — LookCloser has no affiliate relationships and earns nothing from any link on this page.
Ingredient science
No knowledge-base entry yet for this formula's active ingredients — entries are added as the KB grows. Absence of a science card is a coverage gap, not a judgment.
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.
Record 804879522317 · built July 27, 2026 · lookcloser.ai · corrections@lookcloser.ai