Specific fact confirmed
UPC independently corroborated
UPCitemdb resolves 850011900154 to "Eagleshine Vitamins Quercetin 800mg with Bromelain 200mg, 120 Capsules, Support " (Eagleshine Vitamins) — consistent with this listing.
What checks out · DEAL SUPPLEMENT
DEAL SUPPLEMENT Quercetin 1,000mg Per Serving, 300 Capsules
The panel publishes 1 amounts, led by Quercetin (as Quercetin Dihydrate) 1 g.
Rebuilt from public sources on July 22, 2026 · evidence availability is not a safety or effectiveness verdict.
What this means for you · What checks out
What the record confirms
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
Panel, decoded
The 1 g quercetin (as quercetin dihydrate) claim matches the panel
MARKETING1 g — per-serving claim
PANELQuercetin (as Quercetin Dihydrate) 1 g — same amountQuercetin (as Quercetin Dihydrate) 1 g
matches panelWe did the comparison: the listing claims 1 g of quercetin (as quercetin dihydrate), and the listing-image panel shows 1 g quercetin (as quercetin dihydrate) 3 capsules. Those amounts agree. This is internal consistency, not independent lab testing.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Quercetin (as Quercetin Dihydrate) | 1,000 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.
What would settle the biggest open question?
Can the testing claim be tied to a named laboratory and this product lot? Evidence that would settle it: lot-specific COA naming the laboratory and matching the product lot.
Open the full evidence trailSources, edge cases, and every unresolved check
Confirmed evidence
What checked out02
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Every ingredient amount is disclosed
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
Barcode confirmed in an outside database
UPCitemdb resolves 850011900154 to "Eagleshine Vitamins Quercetin 800mg with Bromelain 200mg, 120 Capsules, Support " (Eagleshine Vitamins) — consistent with this listing.
Documented concerns
What needs caution00
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
What is still missing05
We looked for these signals but could not settle them from public sources. A gap is not a strike.
Review-count history: not available
Marketplace rating not shown★ — rating count unavailable. No exact-listing count history was available, so no review-pattern claim is made.
“Lab tested” claimed, but no lab or report named
The listing claims third-party testing without naming any lab or certifier, so the claim can't be verified as stated.
Listing claim matches the label panel
The listing claims 1 g; the photo-read Supplement Facts panel shows Quercetin (as Quercetin Dihydrate) at 1 g per serving — the listing text and its photo-read panel agree; this is internal consistency, not independent testing.
No label filed with NIH's public catalog
The NIH Dietary Supplement Label Database has no matching label yet. Ingestion lags the market — recorded as a gap, not a strike.
No exact supplement trademark owner found
The live USPTO search returned no exact-wordmark supplement-related registration for this brand. That is a public-record gap, not evidence that the brand has no owner or that the product is improper.
What to ask and check
What would settle the open questions
Why is this shown?
Everything we couldn’t verify is something a person can still ask about. Rather than leave gaps sitting as dead ends, we turn each one into a specific question — the exact document, citation, or number that would settle it — plus the things you can confirm yourself with the bottle in your hand.
Ask the brand or seller
1
Answered by the panel: 1 g of the 1 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.
2
Can you send the certificate of analysis (COA) for the lot number on my bottle?
A real COA names the testing laboratory, the test date, the lot it covers, and what was measured. “Third-party tested” with no document behind it is a marketing sentence.
3
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.
4
Where are the ingredients sourced, and where is the product manufactured?
“Made in USA” can describe only the final bottling step. Ask which country the actives came from and whether the facility is audited.
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
1
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.
2
Scan the barcode on the package and confirm it reads 850011900154.
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.
3
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.