The panel publishes 1 amounts, led by Quercetin 500 mg.
Rebuilt from public sources on July 22, 2026 · evidence availability is not a safety or effectiveness verdict.
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
Brand-level caution
Brand-level context only, not a finding about this product. Pure Encapsulations, Inc. recalled a different or not-exactly-bound product on 2017-11-17: “Product contains undeclared sulfites.” (status: Terminated…
Specific fact confirmed
USPTO lists Pure Encapsulations, Inc. (['CORPORATION', 'SOCIÉTÉ ANONYME (SA)']) in ['DELAWARE, USA', 'SWITZERLAND'] for the exact brand wordmark. This identifies the USPTO mark owner or applicant; it does not b…
Specific fact confirmed
UPCitemdb resolves 766298002309 to "Pure Encapsulations Quercetin - 500 mg - Immune Support Cellular Health & Heart" (Pure Encapsulations) — consistent with this listing.
We did the comparison: the listing claims 500 mg of quercetin, and the listing-image panel shows 500 mg quercetin 2 capsules. Those amounts agree. This is internal consistency, not independent lab testing.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Quercetin | 500 mg | — |
FDA rules (21 CFR 101.36) require the amount of each dietary ingredient per serving unless hidden in a declared “proprietary blend” (legal, but a transparency yellow flag). A label stating no amount at all is non-compliant — a checkable red flag. This panel states amounts; any remaining comparison concerns the front-label framing.
vision:google/gemini-flash-1.5 Amounts are shown as declared panel data, not independently lab-tested contents.
490 Boston Post Road, Sudbury, MASSACHUSETTS 01776, UNITED STATES
Filed address
490 Boston Post Road, Sudbury, MASSACHUSETTS 01776, UNITED STATES
This is the USPTO owner of the brand wordmark. It tells a shopper who is behind the brand, but does not by itself identify the manufacturer or prove where this product was made.
Review counts rose gradually. Written-review counts rose from 72 to 92 across the observed period. That describes count movement, not review authenticity or product quality. A variation family may share some public counts.
Keepa exact-listing history · counts do not prove authenticity · variation family may share counts
Do the labeled amounts reconcile with the stated serving and container? Evidence that would settle it: identity-bound Supplement Facts panel.
Confirmed evidence
These checks found support in the public record. They confirm specific facts, not the product as a whole.
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
USPTO lists Pure Encapsulations, Inc. (['CORPORATION', 'SOCIÉTÉ ANONYME (SA)']) in ['DELAWARE, USA', 'SWITZERLAND'] 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.
UPCitemdb resolves 766298002309 to "Pure Encapsulations Quercetin - 500 mg - Immune Support Cellular Health & Heart" (Pure Encapsulations) — consistent with this listing.
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 retained 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.
Brand-level context only, not a finding about this product. Pure Encapsulations, Inc. recalled a different or not-exactly-bound product on 2017-11-17: “Product contains undeclared sulfites.” (status: Terminated). The recalled product was: “Pure Encapsulations Systemic Enzyme Complex DIETARY SUPPLEMENT 180 CAPSULES UPC: 7 66298 00862 2” — not necessarily the product on this page. Verify at FDA’s recall database.
The NIH Dietary Supplement Label Database has no matching label yet. Ingestion lags the market — recorded as a gap, not a strike.
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 72 on 2026-01-22 to 92 on 2026-07-07 (net +20). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
What to ask and check
Ask the brand or seller
Answered by the panel: 0.5 g of the 0.5 g headline is quercetin. Which independent lab can confirm that amount in this product?
The panel resolves the front-label arithmetic. The remaining question is lot-specific contents and stability; published category testing gives context, not a test of this product.
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
Compare the panel on the bottle in your hand to the one shown in this record.
Ours was read from listing photos and can contain reading errors. The physical label is the source of truth — if they disagree, tell us and we’ll correct the record.
Scan the barcode on the package and confirm it reads 766298002309.
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.
Record built July 22, 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.