Full record · 737870181392 · back to the summary
Life Extension Zinc Caps, zinc 50 mg, zinc Citrate
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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 50 mg zinc (as optizinc® zinc monomethionine, zinc citrate) claim matches the panel
We did the comparison: the listing claims 50 mg of zinc (as optizinc® zinc monomethionine, zinc citrate), and the listing-image panel shows 50 mg zinc (as optizinc® zinc monomethionine, zinc citrate) 1 vegetarian capsule. Those amounts agree. This is internal consistency, not independent lab testing.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Zinc (as OptiZinc® zinc monomethionine, zinc citrate) | 50 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.
Every check we ran
Panel amounts are awaiting a clearer image read
The current image extraction retained 1 ingredient name(s) but no usable amounts. This is a LookCloser processing gap, not evidence that the brand withheld the numbers; dose arithmetic is withheld until the panel is re-read.
Research context is available for the listed ingredients
Published sources describe how zinc have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Zinc fact sheet, PubMed search: zinc supplementation trial.
Not found in NIH's DSLD label registry
The NIH Dietary Supplement Label Database has no matching label yet. Ingestion lags the market — recorded as a gap, not a strike.
Barcode record is too sparse to confirm identity
Open Food Facts resolves 737870181392 to "Zinc caps" (brand not supplied), but that record lacks enough exact brand/product detail to confirm or contradict this listing.
180-day review-count history is on file
Exact-listing history records written-review counts from 389 on 2026-01-31 to 428 on 2026-07-03 (net +39). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
This item belongs to a catalog variation family
The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.
What the listing promises — claim by claim
Why is this shown?
| Claim | Status | What we found |
|---|---|---|
| Quality-testing claim “…ing only the finest raw ingredients with the purity and potency your body deserves. The majority of our prod…” | Claimed, not verifiable We looked for: a named laboratory, a certificate of analysis, or a certification-registry entry | No named laboratory, no certificate of analysis, and no certification-registry entry matching this product was located. |
| Origin claim “…of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available f…” | 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 “…tension Zinc Caps, zinc 50 mg, zinc Citrate, Support The Body's Immune defenses, Ultra-absorbable…” | Partly supported We looked for: whether the ingredient doses on the label match the doses used in published research | Published research exists for ingredients in this formula — see Related research below. Whether this product’s doses match those studies could not be confirmed. |
“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.
This label vs. the doses studied
Why is this shown?
| Ingredient | Where this label sits | Reading |
|---|---|---|
| Zinc (as OptiZinc® zinc monomethionine, zinc | shaded = doses used in studies (8 mg–40 mg) · bar = this label | 50 mg — above the studied range |
Matching a studied dose does not mean the product works, and missing it does not mean it fails — it shows whether the label and the research are talking about the same amounts. Not a recommendation to take any amount.
Documented cautions
- zinc — daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice
Statements from published sources about these ingredients — not advice about this product, and not a complete safety review. Anyone taking medication should talk to a pharmacist or clinician.
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
| UPC (barcode) — also our record ID | 737870181392 — via source listing UPC |
| Brand | Life Extension |
| Source listing identifier | B004S8CNMS |
| Retailer listing title | Life Extension Zinc Caps, zinc 50 mg, zinc Citrate, Support The Body's… show full titleLife Extension Zinc Caps, zinc 50 mg, zinc Citrate, Support The Body's Immune defenses, Ultra-absorbable, Vegetarian, Non-GMO, Gluten-Free, 90 Vegetarian Capsules |
From the label (photo-read)
| Serving size | 1 Vegetarian Capsule |
| Pack statement | 90 vegetarian capsules |
| Badges printed on pack | GLUTEN FREE, NON GMO LE CERTIFIED, MANUFACTURED IN THE USA, VEGETARIAN LE CERTIFIED |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Zinc (as OptiZinc® zinc monomethionine, zinc citrate) | 50 mg | High clearly legible in the photo |
Claims printed on the packaging:
“High Potency*” · “Store tightly closed in a cool, dry place.” · “Helps fight immune challenges” · “Fills daily zinc dietary gaps” · “Supports heart, brain & vision” · “Your Health Strategy” · “3-month supply” · “Zinc supports over 300 biochemical reactions, benefiting your immune, heart, brain & vision health.”
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 — NIH references
Zinc — NIH ODS · MedlinePlus · PubMed (19,708) · UL 40 mg (adults, from all sources)
Reference data from the NIH Office of Dietary Supplements, IOM Dietary Reference Intakes, and PubMed. A Tolerable Upper Intake Level is a documented reference figure, not a safety verdict — both the declared amount and the reference are shown for your own judgment. LookCloser gives no medical advice.
Related research & consistency
zinc — NIH ODS — Zinc fact sheet · PubMed search: zinc supplementation trial · ClinicalTrials.gov — 1,598 registered studies
ℹ Use pattern in research: daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice.
These notes state where label numbers and marketing framing sit relative to published research — documentation for your own judgment, not medical advice. LookCloser does not advise for or against taking any supplement.
Record 737870181392 · built July 23, 2026 · lookcloser.ai · corrections@lookcloser.ai