“supplements for men & women with quercetin supports Immune”
Evidence →Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.
Exact product checked · GTIN 00812239000696Sandhu's · checked Jul 31, 2026 · on sale since Oct 13, 2023🇺🇸 USPTO wordmark owner · Sandhu Products, Inc. · CALIFORNIA, USAPackage says manufactured by: Sandhu Products Inc. · Livermore, CA 94551
Quick read · Sandhu's
Sandhu'S Zinc Quercetin
Checked against public sources on July 31, 2026 · LookCloser does not sell or recommend supplements.
120capsules · 60 servings
Does the marketing hold up?
Every ingredient shows its amount · 2 ingredients listed. Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
Is the dose real?✓Listing and panel agreeboth say 800 mg of Quercetin
What a serving costs$0.83per serving, at the checked price
Is it tested?Claimed — not yet checked
Who’s behind it?🇺🇸Sandhu Products, Inc.corporation · CALIFORNIA, USA
Is it the real thing?✓Barcode matches outside records
Trouble on record?✓No recalls found
“Couldn’t verify” means we looked and found no public proof — not a mark against the product. Most supplement claims cannot be independently verified by anyone, so grey is the normal state of this industry.
3◖ partly confirmed1? couldn’t verifyno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Zinc (as zinc mono methionine chelate complex) | 22 mg |
|---|---|
| Quercetin (as quercetin dihydrate) Japanese sophora (Sophora japonica) (flower buds) extract | 800 mg |
Printed on the package: Third Party Tested · cGMP · Research Based Nutrition · Practitioner Formulated · THIRD PARTY LAB TESTED
We read 2 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.
Marketing claims, checked
The checks, one by one
The public sources did not settle the marketing promises on this label.
◐Partly confirmed3
“to swallow, third party tested & made in NSF-GMP Certified facility in the”
Evidence →“GMP-certified” describes factory processes, not what is in the bottle. The claim does not name a certifier or public register that a shopper can check.
“to swallow, third party tested & made in NSF-GMP Certified facility in the”
Evidence →A testing body is named on the listing, but we found no lot-specific certificate of analysis.
Ingredient research can support context, but it is not a trial of this exact product.
?Couldn’t verify independently1
“IN USA WITH GLOBALLY SOURCE”
Evidence →“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.
We looked and found no public proof. That does not count against the product.
Marketing language, not scored
Superior Absorption & Retention of Zinc*
Quick read · 3 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
CheckedIs the label honest?
Every ingredient shows its amount · 2 ingredients listed.
Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
Evidence and sources
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
Locked evidence record →Open the full source-linked findingCheckedWho is behind it?
The barcode identity checks out · 812239000696.
The barcode matches, so we are checking the right product rather than a look-alike.
Evidence and sources
The brand's store lists this exact barcode as “Zinc Quercetin” (variant: 2) — identity confirmed across retailer listings.
Locked evidence record →Open the full source-linked findingCheckedCan you trust the review pattern?
Reviews rose from 10 to 14 between December 18, 2025 and May 31, 2026 — no sudden jump.
A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Evidence and sources
Written reviews rose from 10 to 14 between December 18, 2025 and May 31, 2026. The largest rise inside any single 30-day window was about 1, so the count moved in steps rather than in one burst.
Locked evidence record →Open the full source-linked findingWhat remains open 2
- No FDA recall matched this brand in the current search.
- We have not found a public label filing for this exact product.
These are evidence gaps, not strikes against the product.
Who owns the brand wordmark?
🇺🇸
Sandhu Products, Inc.Corporation · exact supplement-class mark for SANDHU'S
Filed address
4580 Contractors Place, Livermore, California 94551, 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 ↗
Research behind the findings
Dose and research context
We could not match an amount on this product to a studied range for the same ingredient, so these links are ingredient background rather than a measurement of this product.
Background reading
What the research says about these amounts
Not a score. Studies disagree with each other and change over time, so this sits beside the evidence rather than counting toward it — it is here so you can read the sources yourself.
The panel lists 22 mg of zinc per serving. Studies we found used 8 mg–40 mg a day, so this sits inside that range.
0studied 8 mg–40 mg
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
Where it sells
Price check for this exact product
Amazon
Exact UPC/GTIN match$49.99
$0.83 per labeled serving
matching UPC/GTIN · checked Aug 1, 2026
View on Amazon ↗Brand website
Exact UPC/GTIN match$56.00
$0.93 per labeled serving
matching UPC/GTIN · checked Jul 31, 2026
View on Brand website ↗iHerb
Not confirmedNo exact listing saved
We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search iHerb ↗Target
Not confirmedNo exact listing saved
We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Target ↗Walmart
Not confirmedNo exact listing saved
We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Walmart ↗Same UPC/GTIN observed across 2 sellers. Amazon was lowest at $49.99; Brand website was highest at $56.00 — a $6.01 range at check time.
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.
Record built August 02, 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.