Full record · lc-73bec761 · back to the summary
Biosyntra Pure Quercetin 500mg - Pure Quercetin Capsules for Immune Support & Cellular P…
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How to read this report
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.
The 500 mg quercetin claim matches the panel
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 | 500mg | — |
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.
Every check we ran
No data yet: Testing claimed — documentation not found
The observed listing claims third-party testing without naming a lab or certifier. No product-bound report is retained, so the claim cannot be verified as stated. NSF, IFOS, USP, and Informed-Sport were not checked in this record.
No data yet: 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.
Listing claim matches the Supplement Facts panel
The listing claims 500 mg; the photo-read Supplement Facts panel shows Quercetin at 500 mg per serving — the listing text and its photo-read panel agree; this is internal consistency, not independent testing.
What the listing promises — claim by claim
Why is this shown?
| Claim | Status | What we found |
|---|---|---|
| Quality-testing claim “…igh Potency Formula Clean & Pure Ingredients Third-Party Tested Made in the USA Formulated for Vitality: Imm…” | Claimed, not verifiable We looked for: the observed listing, retained brand product page, any linked COA or test report; NSF, IFOS, USP, Informed-Sport were not queried | No named laboratory or lot-specific certificate was found for this exact product. No exact brand product page was available for a document check. NSF, IFOS, USP, and Informed-Sport were not checked in this record. This is a public-evidence limit, not a finding that testing did not occur. |
| Manufacturing claim “…NE SUPPORT: CARDIOVASCULAR WELLNESS: Non-GMO GMP Certified Facility GMO FREE Non-GMO & Gluten…” | Claimed, not verifiable We looked for: the facility registration or certificate behind the claim | Facility-level claims can be accurate and still say nothing about this product’s contents. No registration document was located. |
| Origin claim “…Clean & Pure Ingredients Third-Party Tested Made in the USA Formulated for Vitality: Immune, Cardiovascu…” | Claimed, not verifiable We looked for: customs records or label filings showing where ingredients were sourced and where it was made | “Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product. |
| Benefit claim “…n 500mg - Pure Quercetin Capsules for Immune Support & Cellular Protection – Gluten-Free, Non-GMO…” | Not assessed We looked for: whether the ingredient doses on the label match the doses used in published research | Ingredient-level evidence for this formula isn’t in our knowledge base yet. Recorded as not assessed — not as a negative. |
“No evidence located” does not mean a claim is false — it means the seller has not put evidence proportionate to the claim on the public record, and we could not find any. Absence of proof is not proof of absence.
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
| LookCloser record ID | lc-73bec761 (internal — no barcode published, which limits cross-checking) |
| Brand | Biosyntra |
| Source listing identifier | B0F8Y6Q29B |
| Retailer listing title | Biosyntra Pure Quercetin 500mg - Pure Quercetin Capsules for Immune Su… show full titleBiosyntra Pure Quercetin 500mg - Pure Quercetin Capsules for Immune Support & Cellular Protection – Gluten-Free, Non-GMO, 120 Capsules |
From the label (photo-read)
| Serving size | 2 Capsules |
| Servings per container | 60 |
| Pack statement | 120 CAPSULES |
| Badges printed on pack | Non-GMO, GMP Certified Facility, GMO FREE, Non-GMO & Gluten-Free, Made in a USA Registered Facility, Hypoallergenic Formula, 100% NATURAL, GMP CERTIFIED PRACTICE |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Quercetin | 500mg | High clearly legible in the photo |
Claims printed on the packaging:
“POWERFUL ANTIOXIDANT” · “CARDIOVASCULAR HEALTH” · “IMMUNE FUNCTION & SKIN HEALTH” · “High Potency Formula” · “Clean & Pure Ingredients” · “Third-Party Tested” · “Made in the USA” · “Formulated for Vitality: Immune, Cardiovascular & Skin Wellness”
Read by a vision model from 8 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
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 lc-73bec761 · built July 23, 2026 · lookcloser.ai · corrections@lookcloser.ai