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

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.
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.
“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.
What the Supplement Facts panel says
| Vitamin A | 1,050 mcg |
|---|---|
| Vitamin C | 60 mg |
| Vitamin D3 | 25 mcg |
| Vitamin E | 13.5 mg |
| Vitamin K | 25 mcg |
| Thiamin | 1.5 mg |
| Riboflavin | 1.7 mg |
| Niacin | 20 mg |
| Vitamin B6 | 2 mg |
| Folate | 667 mcg DFE |
| Vitamin B12 | 6 mcg |
| Biotin | 30 mcg |
| Pantothenic Acid | 10 mg |
| Calcium | 200 mg |
| Iron | 18 mg |
| Phosphorus | 20 mg |
| lodine | 150 mcg |
| Magnesium | 50 mg |
| Zinc | 11 mg |
| Selenium | 55 mcg |
| Copper | 0.5 mg |
| Manganese | 2.3 mg |
| Chromium | 35 mcg |
| Molybdenum | 45 mcg |
| Chloride | 72 mg |
| Potassium | 80 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.
The checks, one by one
The public sources did not settle the marketing promises on this label.
◐Partly confirmed1
Ingredient research can support context, but it is not a trial of this exact product.
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
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 findingRegistered 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 findingEvery 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 findingThe 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 findingWhat remains open 1
- We have not found a public label filing for this exact product.
These are evidence gaps, not strikes against the product.
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.
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.
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 ↗
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.
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.
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.
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
Price check for this exact product
Amazon
Exact UPC/GTIN matchmatching UPC/GTIN · checked Sep 2, 2026
View on Amazon ↗iHerb
Exact UPC/GTIN matchmatching UPC/GTIN · checked Jul 25, 2026
View on iHerb ↗Target
Not confirmedWe 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 confirmedWe 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.
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.