LookCloser.aipublic supplement evidence
Exact product checked · GTIN 00850047011008Prevagen · checked Aug 3, 2026 · on sale since Nov 23, 2022🇺🇸 USPTO wordmark owner · QUINCY BIOSCIENCE, LLC · WISCONSIN, USAPackage says distributed by: Quincy Bioscience Holding Company, Inc. · Madison, WI 53717, USA
Quick read · Prevagen

Prevagen Regular Strength with Storage Box

Checked against public sources on August 3, 2026 · LookCloser does not sell or recommend supplements.

30capsules
30servings per container

Does the marketing hold up?

Package and trademark records name different responsible entities. The package says distributed by: Quincy Bioscience Holding Company, Inc., Madison, WI 53717, USA. USPTO names QUINCY BIOSCIENCE, LLC as the exact wordmark owner. …

Is the dose real?Panel read — dose not verified2 ingredients listed; no advertised amount we could confirm against them
What a serving costs$1.27per serving, at the checked price
Is it tested?NSF seal printed on the labelwe read it off the package photo; not confirmed in NSF’s registry
Who’s behind it?🇺🇸QUINCY BIOSCIENCE, LLClimited liability company · WISCONSIN, USA
Is it the real thing?Barcode matches outside records
Trouble on record?No recalls found
The label itself

What the Supplement Facts panel says

Serving size 1 capsule · 30 servings per container

Vitamin D (as D3 cholecalciferol)50 mcg
Apoaequorin10 mg

Printed on the package: NSF · CONTENTS CERTIFIED

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.

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?
🇺🇸
QUINCY BIOSCIENCE, LLCLimited Liability Company · exact supplement-class mark for PREVAGEN
Registration7299647
Registered2024-02-06
AssignmentsNo transfers recorded

Filed address
8401 Greenway Blvd, Suite 800, Middleton, Wisconsin 53562, 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
$37.95

$1.27 per labeled serving

matching UPC/GTIN · checked Aug 3, 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.

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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.

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 August 04, 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.