Published research exists for ingredients in this formula — see Related research below. Whether this product’s doses match those studies could not be confirmed.

Nature's Bounty, Zinc 50mg, Immune System Skin and Antioxidant…
Checked against public sources on July 25, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Registered owner records: NATURE'S BOUNTY, INC. · NATURE'S BOUNTY (NY), INC. · Société des Produits Nestlé S.A. (société anonyme (sa); SWITZERLAND) The public ownership record is ambiguous. We show the exact candidates instead of choosing one by name similarity.
“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.
The checks, one by one
1 promise needs a closer look.
◐Partly confirmed1
Ingredient research can support context, but it is not a trial of this exact product.
△Claimed without support found1
We found no named, citable study of this product or formula. The claim may rest on ingredient research rather than a trial of this product.
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Registered owner records: NATURE'S BOUNTY, INC. · NATURE'S BOUNTY (NY), INC. · Société des Produits Nestlé S.A. (société anonyme (sa); SWITZERLAND)
The public ownership record is ambiguous. We show the exact candidates instead of choosing one by name similarity.
Evidence and sources
USPTO returned multiple live supplement-class records for the exact brand wordmark: NATURE'S BOUNTY, INC., NATURE'S BOUNTY (NY), INC., Société des Produits Nestlé S.A. (société anonyme (sa); SWITZERLAND). These records answer who owns registrations for the brand; the separate pro…
Locked evidence record →Open the full source-linked findingReviews grew steadily — about 58 between February 26, 2026 to July 12, 2026, with no sudden spike.
Gradual growth is more ordinary. A sudden burst deserves a closer look.
Evidence and sources
Written reviews grew from 4525 to 4578 across 2026-03-09 – 2026-07-12 with no single manufactured spike (largest 30-day gain ~23).
Locked evidence record →Open the full source-linked findingWhat remains open 2
- Panel amounts still need a clearer source image.
- No matched to this exact product public label filing is saved in this record.
These are evidence gaps, not strikes against the product.
The brand has 3 exact supplement-class records
These are the USPTO records behind the brand name. We show them all rather than choosing one by similarity.
NEW YORK, USA; SWITZERLAND · Registration 0963384
55 NORTH MALL, PLAINVIEW, NEW YORK 11803, UNITED STATES
Goods covered by this record
US 018: FOOD SUPPLEMENT CONTAINING VITAMINS AND MINERALS.; US 046: CONCENTRATED PROTEIN FOOD.
NEW YORK, USA; SWITZERLAND · Registration 5165421
2100 SMITHTOWN AVENUE, LEGAL DEPT., RONKONKOMA, NEW YORK 11779, UNITED STATES
Goods covered by this record
IC 005: Dietary and nutritional supplements; Food supplements; Herbal supplements; Probiotic supplements; Vitamin and mineral supplements.
SWITZERLAND · Registration 7583162
SWITZERLAND); CH-1800 Vevey, SWITZERLAND
Goods covered by this record
IC 005: Vitamins; dietary supplements; mineral supplements; nutritional supplements; vitamin preparations; concentrated protein dietary supplements; plant-based dietary supplements; dietetic supplements adapted for medical use; food supplements; probiotic supplements.
This answers who owns registrations for the brand wordmark. It does not by itself prove which entity made, imported, or sold this specific product. Open USPTO source ↗
Dose and research context
The label amount is shown beside the ranges used in the linked ingredient studies.
The Active Ingredient
50 mg per serving — above the 8–40 mg/day used in the linked studies.
Price check for this exact product
Amazon
Exact UPC/GTIN matchmatching UPC/GTIN · checked Jul 25, 2026
View on Amazon ↗iHerb
Exact UPC/GTIN matchmatching UPC/GTIN · checked Jul 24, 2026
View on iHerb ↗Target
Not confirmedSearch results remain not linked to this exact product until this retailer publishes the matching UPC/GTIN.
Search Target ↗Walmart
Not confirmedSearch results remain not linked to this exact product until this retailer publishes the matching UPC/GTIN.
Search Walmart ↗Same UPC/GTIN observed across 2 sellers. Amazon was lowest at $3.47; iHerb was highest at $6.41 — a $2.94 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 July 25, 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.