Exact product checked · GTIN 00850047011091Prevagen · checked Jul 25, 2026🇺🇸 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

Name: Prevagen Extra Strength with Storage Box, 60 Capsules
Brand: Prevagen

Checked against public sources on July 25, 2026 · LookCloser does not sell or recommend supplements.

60capsules

Does the marketing hold up?

🇺🇸 Brand owner: QUINCY BIOSCIENCE, LLC · limited liability company, WISCONSIN, USA This tells you who is behind the brand and where the trademark record points. It does not by itself identify the manufacturer.

Is the dose real?Can’t check — no panel filed

What a serving costsNo exact-match price found

Is it tested?No testing claim made

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

Quick read · 1 useful finding

What is worth knowing.

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

Checks outCan you trust the review pattern?

Reviews grew steadily — about 41 between January 29, 2026 to July 21, 2026, with no sudden spike.

Gradual growth is more ordinary. A sudden burst deserves a closer look.

Evidence and sources

Written reviews grew from 568 to 605 across 2026-03-18 – 2026-07-21 with no single manufactured spike (largest 30-day gain ~12).

Keepa exact-listing historydated count history · exact listing

Locked evidence record →Open the full source-linked finding

What remains open 2

No matched to this exact product public label filing is saved in this record.
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

$95.92

matching UPC/GTIN · checked Jul 25, 2026

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iHerb

Not confirmed

No exact listing saved

Search results remain not linked to this exact product until this retailer publishes the matching UPC/GTIN.

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Target

Not confirmed

No exact listing saved

Search results remain not linked to this exact product until this retailer publishes the matching UPC/GTIN.

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Walmart

Not confirmed

No exact listing saved

Search results remain not linked to this exact product until this retailer publishes the matching UPC/GTIN.

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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 July 25, 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.