“Vitamin C 1,000 mg per serving”
Evidence →The label promises 1,000 mg per serving. The panel says 1,000 mg. They match.
Exact product checked · barcode not publishedAmerican Standard Supplements · checked Jul 25, 2026 · on sale since Sep 26, 2020🇺🇸 USPTO wordmark owner · AMERICAN STANDARD SUPPLEMENTS LLC · WYOMING, USAPackage says distributed by: American Standard Supplements LLC · 4855 S Ophelia Ln Ontario, CA 91762
Quick read · American Standard Supplements
American Standard Supplements Zinc 100mg
Checked against public sources on July 25, 2026 · LookCloser does not sell or recommend supplements.
120capsules · 60 servings
Does the marketing hold up?
Every ingredient shows its amount · 3 ingredients listed. Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
Is the dose real?✓Listing and panel agreeboth say 1,000 mg of Vitamin C
What a serving costsNo price found for this exact barcode
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇺🇸AMERICAN STANDARD SUPPLEMENTS LLClimited liability company · WYOMING, USA
Is it the real thing?No barcode publishedso it can’t be matched against certification, recall or other retailer records
Trouble on record?Recall check not run yeta gap in our records, not a finding about the product
“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.
2✓ checked out2◖ partly confirmed2? couldn’t verifyno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Vitamin C (as ascorbic acid) | 1000 mg |
|---|---|
| Vitamin D3 (as cholecalciferol) | 125 mcg |
| Zinc (as zinc citrate) | 100 mg |
Printed on the package: GLUTEN FREE · NON GMO · GMP CERTIFIED FACILITY · 3RD PARTY QUALITY TESTED · GMP · AMERICAN STANDARD · SUPPLEMENTS
We read 3 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
2 promises check out. 4 could not be fully confirmed from public sources.
✓Matches the label2
“Zinc 100 mg per serving”
Evidence →The label promises 100 mg per serving. The panel says 100 mg. They match.
◐Partly confirmed2
“CERTIFIED”
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.
“essential mineral that strengthens immunity, and support skin”
Evidence →Ingredient evidence exists; on dose: label states 100 mg/serving — about 250% of the adult daily reference (adult RDA 8–11 mg; NIH sets 40 mg/day as the tolerable upper limit for adults). A single serving isn’t meant to supply a full day, so this is context, not a shortfall. Caveat: chelate and gluconate labels may state compound mass rather than elemental zinc.
Ingredient research can support context, but it is not a trial of this exact product.
?Couldn’t verify independently2
“of our products are made in the USA with globally sourced ingredients and undergo rigorous testing to ensure purity and”
Evidence →“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.
“of our products are made in the USA with globally sourced ingredients and undergo rigorous testing to ensure purity and”
Evidence →No named laboratory or lot-specific certificate was found for this exact product. A related brand page names no testing issuer and links no product-bound report; its UPC is not published. 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.
We looked and found no public proof. That does not count against the product.
Marketing language, not scored
Powerful antioxidant for immunity, collagen support, and daily wellness
Quick read · 1 useful finding
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
CheckedIs the label honest?
Every ingredient shows its amount · 3 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 findingWho owns the brand wordmark?
🇺🇸
AMERICAN STANDARD SUPPLEMENTS LLCLimited Liability Company · exact supplement-class mark for AMERICAN STANDARD SUPPLEMENTS
Filed address
4855 Ophelia Ln, Ontario, California 91762, 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 100 mg of zinc per serving. Studies we found used 8 mg–40 mg a day, so this sits above 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.
Buying options
Where you can check or buy it
Open related seller leads before buying, then confirm the flavor, count, and serving size. Their prices are visible, but LookCloser does not claim savings until the pages share a UPC/GTIN.
Amazon
Submitted listing$18.99
Lowest New observed via Keepa on 2026-08-29.
View on Amazon ↗Brand website
Official product-page candidate · UPC absent$12.99
Useful official shopping lead; excluded from exact price comparisons.
Zinc + Vitamin C + Vitamin D3 · 60 capsules. The page matches 100 mg, 1000 mg, but omits the identifier needed to bind the exact sellable unit.
Check brand website ↗iHerb
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search iHerb ↗Target
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search Target ↗Walmart
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search Walmart ↗Prices and stock are point-in-time observations. Related pages are never used as product evidence. No affiliate links; LookCloser earns nothing from these sellers.
Want the complete evidence trail?
The summary stops at product-specific facts. The full report preserves every source, calculation, limitation, and unresolved check for review or sharing.
Record built September 03, 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.