LookCloser.aipublic supplement evidence
Exact product checked · GTIN 00305734451747Centrum · checked Sep 2, 2026 · on sale since Nov 17, 2025USPTO returned 2 exact supplement-class owner records · inspect the identity trail
Quick read · Centrum

Centrum Multivitamin for Adults 18 and Over

Checked against public sources between July 25 and September 2, 2026 · LookCloser does not sell or recommend supplements.

200tablets

Does the marketing hold up?

Reviews went from 0 to 867 between December 3, 2025 and August 19, 2026 — 91% of them arrived in a single month. A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.

Is the dose real?Panel read — dose not verified26 ingredients listed; no advertised amount we could confirm against them
What a serving costsNo price found for this exact barcode
Is it tested?No testing claim made
Who’s behind it?USPTO lists 2 owner recordssame brand name, more than one registrant — we don’t choose between them
Is it the real thing?Barcode matches outside records
Trouble on record?Recall check not run yeta gap in our records, not a finding about the product

“Couldn’t verify” means we looked and found no public proof — not a mark against the product. Most supplement claims cannot be independently verified by anyone, so grey is the normal state of this industry.

1◖ partly confirmedno contradictions · no recalls
The label itself

What the Supplement Facts panel says

Serving size 1 tablet

Vitamin A1,050 mcg
Vitamin C60 mg
Vitamin D325 mcg
Vitamin E13.5 mg
Vitamin K25 mcg
Thiamin1.5 mg
Riboflavin1.7 mg
Niacin20 mg
Vitamin B62 mg
Folate667 mcg DFE
Vitamin B126 mcg
Biotin30 mcg
Pantothenic Acid10 mg
Calcium200 mg
Iron18 mg
Phosphorus20 mg
lodine150 mcg
Magnesium50 mg
Zinc11 mg
Selenium55 mcg
Copper0.5 mg
Manganese2.3 mg
Chromium35 mcg
Molybdenum45 mcg
Chloride72 mg
Potassium80 mg

We read 26 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.

Marketing claims, checked

The checks, one by one

The public sources did not settle the marketing promises on this label.

Partly confirmed1

“Supplement with Antioxidants such as Vitamins C and E, and Zinc, Vitamin D3 and B Vitamins Vitamins for women and men with iron, antioxidants a”

Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.

Evidence →

Ingredient research can support context, but it is not a trial of this exact product.

Quick read · 4 useful findings

What is worth knowing.

Headlines first. Open evidence only when you want the source trail.

Needs explanationCan you trust the review pattern?

Reviews went from 0 to 867 between December 3, 2025 and August 19, 2026 — 91% of them arrived in a single month.

A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.

Evidence and sources

The dated series runs from 0 written reviews on December 3, 2025 to 867 on August 19, 2026. Up to 788 written reviews were added within a single ~30-day window — 91% of the total. Sudden bursts are the usual fingerprint of incentivized or bought reviews; a steady climb is not.

Locked evidence record →Open the full source-linked finding
Public contextWho is behind it?

Registered owner records: AMERICAN CYANAMID COMPANY · GlaxoSmithKline Consumer Healthcare Holdings (US) LLC

The public ownership record is ambiguous. We show the exact candidates instead of choosing one by name similarity.

Evidence and sources

USPTO returned multiple live supplement-class records for the exact brand wordmark: AMERICAN CYANAMID COMPANY, GlaxoSmithKline Consumer Healthcare Holdings (US) LLC. These records answer who owns registrations for the brand; the separate product-to-owner or manufacturer link…

Locked evidence record →Open the full source-linked finding
CheckedIs the label honest?

Every ingredient shows its amount · 26 ingredients listed.

Every ingredient shows its real amount — nothing is hidden in a proprietary blend.

Evidence and sources

The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.

Locked evidence record →Open the full source-linked finding
CheckedWho is behind it?

The barcode identity checks out · 305734451747.

The barcode matches, so we are checking the right product rather than a look-alike.

Evidence and sources

Open Food Facts resolves 305734451747 to "Multivitamin - Adults" (Centrum) — consistent with this listing.

Locked evidence record →Open the full source-linked finding
What remains open 1
  • We have not found a public label filing for this exact product.

These are evidence gaps, not strikes against the product.

Who owns the brand wordmark?

The brand has 2 exact supplement-class records

These are the USPTO records behind the brand name. We show them all rather than choosing one by similarity.

🇺🇸AMERICAN CYANAMID COMPANY

MAINE, USA; DELAWARE, USA · Registration 1883293

Five Giralda Farms, Madison, NEW JERSEY 07940, UNITED STATES

Goods covered by this record

IC 005: nutritional and dietary supplements.

🇺🇸GlaxoSmithKline Consumer Healthcare Holdings (US) LLC

DELAWARE, USA · Registration 7145961

251 LITTLE FALLS DRIVE, CORPORATION SERVICE COMPANY, WILMINGTON, DELAWARE 19808, UNITED STATES

Goods covered by this record

IC 005: Dietary and nutritional supplements; vitamins.

This answers who owns registrations for the brand wordmark. It does not by itself prove which entity made, imported, or sold this specific product. Open USPTO source ↗

Research behind the findings

Dose and research context

We could not match an amount on this product to a studied range for the same ingredient, so these links are ingredient background rather than a measurement of this product.

Background reading

What the research says about these amounts

Not a score. Studies disagree with each other and change over time, so this sits beside the evidence rather than counting toward it — it is here so you can read the sources yourself.

The panel lists 50 mg of magnesium per serving. Studies we found used 200 mg–420 mg a day, so this sits below that range.

0studied 200 mg–420 mg

Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.

The panel lists 11 mg of zinc per serving. Studies we found used 8 mg–40 mg a day, so this sits inside that range.

0studied 8 mg–40 mg

Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.

Where it sells

Price check for this exact product

Amazon

Exact UPC/GTIN match
$10.97

matching UPC/GTIN · checked Sep 2, 2026

View on Amazon ↗

iHerb

Exact UPC/GTIN match
$17.73

4.7/5 · 1,276 ratings

matching UPC/GTIN · checked Jul 25, 2026

View on iHerb ↗

Target

Not confirmed
No exact listing saved

We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.

Search Target ↗

Walmart

Not confirmed
No exact listing saved

We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.

Search Walmart ↗

Same UPC/GTIN observed across 2 sellers. Amazon was lowest at $10.97; iHerb was highest at $17.73 — a $6.76 range at check time.

Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.

Want to inspect the evidence?

The full report shows every source, the exact unresolved question, and the documentation that would settle it.

Read / share full evidence →

Record built September 03, 2026. Sources: source listing observed at check time · USPTO Trademark Search · Keepa exact-listing history · NIH / published research · certification and regulator records where available. LookCloser publishes evidence and gaps; it does not advise for or against any supplement. Evidence-based corrections welcome.