“Copper 1 mg per serving”
Evidence →The label promises 1 mg per serving. The panel says 1 mg. They match.
Exact product checked · GTIN 00790011130086Jarrow Formulas · checked Jul 21, 2026🇺🇸 USPTO wordmark owner · Jarrow Formulas, Inc. · CALIFORNIA, USAPackage says distributed by: Distrio Sherm
Quick read · Jarrow Formulas
Jarrow Formulas Zinc Balance 15 mg
Checked against public sources between July 21 and July 28, 2026 · LookCloser does not sell or recommend supplements.
100capsules
100servings per container
4.7 / 5rating at observation
9,088visible ratings
Does the marketing hold up?
FDA recall appears in this brand's history. An exact-product recall is a direct signal. A different product from the same firm is company context, not a strike against this item.
Is the dose real?✓Listing and panel agreeboth say 1 mg of Copper
What a serving costsNo price found for this exact barcode
Is it tested?No testing claim made
Who’s behind it?🇺🇸Jarrow Formulas, Inc.corporation · CALIFORNIA, USA
Is it the real thing?✓Barcode matches outside records
Trouble on record?Brand history — not this 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 out1◖ partly confirmedno contradictions · brand-level recall on file
The label itself
What the Supplement Facts panel says
| Zinc (as Zinc L-Methionine Sulfate) | 15 mg |
|---|---|
| Copper (as Gluconate) | 1 mg |
Printed on the package: VEGAN · non-gmo · gluten free · IMMUNE SUPPORT* · DIETARY SUPPLEMENT
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
2 promises check out. 1 could not be fully confirmed from public sources.
✓Matches the label2
“Zinc 15 mg per serving”
Evidence →The label promises 15 mg per serving. The panel says 15 mg. They match.
◐Partly confirmed1
“Jarrow Formulas Zinc Balance 15 mg - 100 Servings (Veggie Caps) - Zinc with Copper - Essential Minerals for Immune System Support - Immune Support…”
Evidence →Ingredient evidence exists; on dose: label states 15 mg/serving — about 38% 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.
Registry receipt: NIH ODS · vitamin d fact sheet ↗Registry receipt: NIH ODS · vitamin k fact sheet ↗Registry receipt: NIH ODS · calcium fact sheet ↗Registry receipt: NIH ODS · iodine fact sheet ↗Registry receipt: NIH ODS — Magnesium fact sheet ↗Registry receipt: NIH ODS — Zinc fact sheet ↗Registry receipt: NIH ODS · selenium fact sheet ↗Registry receipt: NIH ODS · copper fact sheet ↗Registry receipt: NIH ODS · manganese fact sheet ↗Registry receipt: NIH ODS · molybdenum fact sheet ↗Registry receipt: NIH ODS · potassium fact sheet ↗
Ingredient research can support context, but it is not a trial of this exact product.
Quick read · 5 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Needs explanationAny trouble in public records?
FDA recall appears in this brand's history
An exact-product recall is a direct signal. A different product from the same firm is company context, not a strike against this item.
Evidence and sources
This recall is not about the product on this page. Jarrow Formulas Inc recalled a different product on January 15, 2018. FDA has since closed that case. The recalled item was “Jarrow Formulas Liquid L-Carnitine; 16 fl oz.…”
Locked evidence record →Open the full source-linked findingNeeds explanationIs the label honest?
Magnesium: 400 mg on the label; adult upper limit 350 mg.
This serving is about 1.1× the adult upper limit shown by NIH. The limit applies to SUPPLEMENTAL magnesium only (not from food).
Evidence and sources
The panel lists 400 mg magnesium. NIH gives 350 mg as the adult Tolerable Upper Intake Level for SUPPLEMENTAL magnesium only (not from food). That is about 1.1 times the limit.
NIH ODS — Magnesium fact sheetupper-limit and Daily Value contextNIH ODS — Magnesium fact sheetmagnesium context · not product evidencePubMed search: magnesium glycinate supplementationmagnesium context · not product evidenceNIH ODS — Zinc fact sheetzinc context · not product evidence
Locked evidence record →Open the full source-linked findingCheckedIs 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?
Registered in NIH's supplement label database (DSLD)
A government label filing makes the listed formula easier to inspect and compare over time.
Evidence and sources
Label #50700 “Mineral Balance” (Jarrow Formulas), entered 2015-09-25, with the full Supplement Facts on file. NIH marks this label as off-market (superseded or discontinued version). Company on file: Distributor — Jarrow Formulas, Los Angeles, CA.
Locked evidence record →Open the full source-linked findingCheckedCan you trust the review pattern?
We can see 2 of this product’s 551 reviews — the count rose between June 9 and July 21, 2026. That is too small a slice to say anything about the wider pattern.
A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Evidence and sources
Written reviews rose from 549 to 551 between June 9 and July 21, 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 findingWho owns the brand wordmark?
🇺🇸
Jarrow Formulas, Inc.Corporation · exact supplement-class mark for JARROW FORMULAS
Filed address
21411 Prairie Street, Chatsworth, California 91311, 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 15 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$9.99
$0.10 per labeled serving
matching UPC/GTIN · checked Sep 1, 2026
View on Amazon ↗iHerb
Exact UPC/GTIN match$12.83
$0.13 per labeled serving
matching UPC/GTIN · checked Jul 28, 2026
View on iHerb ↗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 $9.99; iHerb was highest at $12.83 — a $2.84 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 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.