Checked against public sources on August 11, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Every ingredient shows its amount · 1 ingredients listed. Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
“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.
| Vitamin D3 (as cholecalciferol) | 100 mcg |
|---|
Printed on the package: NSF · CONTENTS CERTIFIED · NON-GMO · 3rd PARTY TESTED · NSF Contents Certified · GF · Gluten-Free
We read 1 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.
The public sources did not settle the marketing promises on this label.
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.
“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.
NatureWise Vitamin D3 uses naturally-sourced, non-GMO cholecalciferol for a clean source of Vitamin D3
Headlines first. Open evidence only when you want the source trail.
Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
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 findingThe barcode matches, so we are checking the right product rather than a look-alike.
UPCitemdb resolves 850053810404 to "NatureWise Vitamin D3 4000iu + Organic Olive Oil - 30 Mini Softgels [30-Day Supp" (NatureWise) — consistent with this listing.
Locked evidence record →Open the full source-linked findingA count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Written reviews rose from 23 to 34 between November 20, 2025 and July 26, 2026. The largest rise inside any single 30-day window was about 3, so the count moved in steps rather than in one burst.
Locked evidence record →Open the full source-linked findingThese are evidence gaps, not strikes against the product.
Filed address
472, 2973 Harbor Blvd., Costa Mesa, CALIFORNIA 92626, 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 ↗
$0.20 per labeled serving
matching UPC/GTIN · checked Aug 11, 2026
View on Amazon ↗We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search iHerb ↗We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Target ↗We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Walmart ↗Only one exact price was available at build time; prices change by date, seller, and promotion.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
The full report shows every source, the exact unresolved question, and the documentation that would settle it.
Record built August 11, 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.