full reportFull record · 850047011091 · back to the summary
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What this is. We compare what a listing claims against what public records show — label arithmetic, barcode registries, NIH’s label catalog, FDA enforcement data, certification registries, and published research. Every statement below traces to one of those.
What the states mean. Confirmed = an outside source agrees. Contradicted = an outside source disagrees. Caution = something needs explaining. No data = we looked and found nothing — a gap, not a strike.
What it is not. A clean record is not an endorsement and never proof a product works. A thin record is not an accusation. We publish evidence and gaps; the conclusion is yours. Nothing here is medical advice.
Something wrong? Every figure is meant to be checkable — sources are named and linked. Send a correction and we’ll fix the record.
Every check we ran
Confirmed evidence
These checks found support in the public record. They confirm specific facts, not the product as a whole.
USPTO lists QUINCY BIOSCIENCE, LLC (LIMITED LIABILITY COMPANY) in WISCONSIN, USA for the exact brand wordmark. This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this product.
Written reviews grew from 568 to 605 across 2026-03-18 – 2026-07-21 with no single manufactured spike (largest 30-day gain ~12).
Documented concerns
These are documented contradictions or claims that need more evidence. They are separate from missing data.
No contradictions or product-specific cautions were found at this check depth.
Unresolved public record
We looked for these signals but could not settle them from public sources. A gap is not a strike.
The saved listing evidence does not establish net weight, per-serving dose, servings per container, so the dose claim cannot yet be checked against serving arithmetic. This is a neutral evidence gap, not a pass or strike.
This record does not currently hold an matched to this exact product public label filing for the exact product. That is a LookCloser coverage gap, not evidence that no filing exists.
The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.
Exact-listing history records written-review counts from 564 on 2026-01-29 to 605 on 2026-07-21 (net +41). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
The package says distributed by: Quincy Bioscience Holding Company, Inc., Madison, WI 53717, USA. USPTO names QUINCY BIOSCIENCE, LLC as the exact wordmark owner. That can be a normal distributor, manufacturer, or licensing relationship; the saved records do not establish the relationship.
Check digit passes; no third-party database record found yet. Coverage gaps are common — not a strike.
What to ask and check
Ask the brand or seller
Can you send a clear photo of the full Supplement Facts panel?
It’s the one part of the label required to state what’s inside and how much. A seller who won’t show it before purchase is asking for trust the label would have earned.
Is this label filed with NIH’s Dietary Supplement Label Database (DSLD)?
Filing is voluntary, so absence proves nothing — but a filed label puts the full ingredient table on public record where anyone can read it.
Most brands and sellers publish a contact route. A clear answer adds evidence to the record; no answer leaves the question open.
Check for yourself — no one’s permission needed
Scan the barcode on the package and confirm it reads 850047011091.
A mismatch between the barcode on the box and the one on the listing is worth pausing over — it can indicate a different variant, a repack, or a counterfeit.
Check the lot number and expiry on the bottle against any COA you’re given.
A certificate that doesn’t name your lot doesn’t describe what you’re holding.
These are the open questions on this specific record — not a warning about the product, and not a suggestion to buy or avoid it. Getting them answered is how you decide for yourself.
Verifiability profile — 2 of 6 public signals
What this listing gives the public to check. Publishing these signals doesn't prove quality — but withholding them means claims can only be taken on faith.
Identity
| UPC (barcode) — also our record ID | 850047011091 — via source listing UPC |
| Brand | Prevagen |
| Source listing identifier | B0BN6ZDFFG |
| Retailer listing title | Prevagen Extra Strength with Storage Box, 60 Capsules, 1-Pack… show full titlePrevagen Extra Strength with Storage Box, 60 Capsules, 1-Pack |
| USPTO brand owner | QUINCY BIOSCIENCE, LLC · LIMITED LIABILITY COMPANY · WISCONSIN, USA |
| Owner filed address | 8401 Greenway Blvd, Suite 800, Middleton, Wisconsin 53562, UNITED STATES |
From the label (photo-read)
| Serving size | 1 capsule |
| Pack statement | 60 CAPSULES PER BOTTLE |
| Badges printed on pack | NSF |
No Supplement Facts panel appears in the listing photos — the full per-ingredient table isn't shown to buyers before purchase. Recorded as a transparency gap, not a strike.
Claims printed on the packaging:
“60 Day Supply” · “For Your Brain*” · “EXTRA STRENGTH” · “Dietary Supplement” · “60 Capsules” · “Holds up to 3 Bottles” · “Reusable Storage for your Prevagen Supply” · “Sturdy, Stackable and Durable”
Read by a vision model from 8 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Where it sells
| Seller | Price |
|---|---|
| Retailer listing ↗ | $95.92 checked Jul 25, 2026 — varies by variant/session; price history pending |
Brand store prevagen.com: 4 supplement products (+5 merch items) — a small, focused catalog — the shape of a brand built around its own line.
Reference links for identification only — LookCloser has no affiliate relationships and earns nothing from any link on this page.
Ingredient science
No knowledge-base entry yet for this formula's active ingredients — entries are added as the KB grows. Absence of a science card is a coverage gap, not a judgment.
Record 850047011091 · built July 25, 2026 · lookcloser.ai · corrections@lookcloser.ai