Exact product checked · GTIN 00850047011091Prevagen · checked Jul 25, 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 Extra Strength with Storage Box
Checked against public sources on July 25, 2026 · LookCloser does not sell or recommend supplements.
60capsules
60servings 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$1.67per 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?Recall check not run yeta gap in our records, not a finding about the product
The label itself
What the Supplement Facts panel says
Serving size 1 capsule · 60 servings per container
Vitamin D
50 mcg
Apoaequorin
20 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.
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 ↗
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.