LookCloser.aipublic supplement evidence
Exact product checked · GTIN 00850040861501NatureBell · checked Jul 27, 2026 · on sale since Jun 2, 2023🇺🇸 USPTO wordmark owner · Nature Bell, Inc. · CALIFORNIA, USA
Quick read · NatureBell

NatureBell Vitamin Double Strength D3 + K2-240…

Checked against public sources on July 27, 2026 · LookCloser does not sell or recommend supplements.

240softgels
240servings per container

Does the marketing hold up?

Testing claimed — documentation not found. 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. …

Is the dose real?Panel read — dose not verified2 ingredients listed; no advertised amount we could confirm against them
What a serving costs$0.11per serving, at the checked price
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇺🇸Nature Bell, Inc.corporation · CALIFORNIA, USA
Is it the real thing?Barcode matches outside records
Trouble on record?No recalls found

“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.

2? couldn’t verifyno contradictions · no recalls
The label itself

What the Supplement Facts panel says

Serving size 1 Softgel · 240 servings per container

Vitamin D3 (as Cholecalciferol)10,000 IU
Vitamin K2 (as Menaquinone) (MK-7)200 mcg

Printed on the package: Non-GMO · Gluten-Free · Soy-Free · Dairy-Free · Wheat-Free · Egg-Free · Third-party USA Lab Tested · Made in the USA

We read 2 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.

?Couldn’t verify independently2

“Tested: These softgels are third-party tested for quality and potency; they are also non-GMO, gluten-free, dairy-free, soy-free, and”

No named laboratory or lot-specific certificate was found for this exact product. No exact brand product page was available for a document check. 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.

Evidence →
“in the USA”

“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.

Evidence →

We looked and found no public proof. That does not count against the product.

Marketing language, not scored

Powerful Bone & Immune Support

Quick read · 1 useful finding

What is worth knowing.

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

CheckedIs the label honest?

Every ingredient shows its amount · 2 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
What remains open 3
  • No FDA recall matched this brand in the current search.
  • We have not found a public label filing for this exact product.
  • Barcode checksum is valid; no independent product record was found.

These are evidence gaps, not strikes against the product.

Who owns the brand wordmark?
🇺🇸
Nature Bell, Inc.Corporation · exact supplement-class mark for NATUREBELL
Registration5845207
Registered2019-08-27
AssignmentsNo transfers recorded

Filed address
4951 Holt Blvd, Suite C, Montclair, California 91763, UNITED STATES

USPTO identifies the public owner or applicant behind this brand wordmark. This does not by itself identify the product manufacturer or prove where the product was made. Open USPTO source ↗

Where it sells

Price check for this exact product

Amazon

Exact UPC/GTIN match
$25.49

$0.11 per labeled serving

matching UPC/GTIN · checked Jul 27, 2026

View on Amazon ↗

iHerb

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 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 ↗

Only one exact price was available at build time; prices change by date, seller, and promotion.

No official brand storefront is confirmed in this record. That is neutral, but it prevents a direct brand-price, label, review, and document check.

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 July 27, 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.