Checked against public sources between July 26 and September 2, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Niacin: 500 mg on the label; adult upper limit 35 mg. This serving is about 14.3× the adult upper limit shown by NIH. The limit applies to supplemental/added niacin, adults.
“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.
| Nicotinamide (Nicotinic Amide Niacin) (Vitamin B-3) | 500 mg |
|---|
Printed on the package: GMP TESTED · GMO FREE · SOY FREE · DAIRY FREE · LAB TESTED · MADE IN USA · GMP/F REGISTERED FA · NON GMO
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.
“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.
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.
Headlines first. Open evidence only when you want the source trail.
This serving is about 14.3× the adult upper limit shown by NIH. The limit applies to supplemental/added niacin, adults.
The panel lists 500 mg niacin. NIH gives 35 mg as the adult Tolerable Upper Intake Level for supplemental/added niacin, adults. That is about 14.3 times the limit.
Locked evidence record →Open the full source-linked findingEvery 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 849440003093 to "Biophix B‑3 Nicotinamide 500 mg 180 Caps Flush‑Free Vitamin B3" (biophix) — consistent with this listing.
Locked evidence record →Open the full source-linked findingA government label filing makes the listed formula easier to inspect and compare over time.
Label #276050 “Nicotinamide 500 mg” (Biophix), entered 2022-10-24, with the full Supplement Facts on file. NIH marks this label as off-market (superseded or discontinued version). Company on file: Distributor — Biophix Health & Nutrition, Davie, FL.
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 378 to 384 between September 17, 2025 and August 17, 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
Florida, USA) biophix; 4131 SW 47th Avenue, suite 1404, davie, Florida 33314, 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 ↗
$0.14 per labeled serving
matching UPC/GTIN · checked Sep 2, 2026
View on Amazon ↗Official shopping lead; excluded from exact price comparisons.
Nicotinamide 500 mg 180 Veggie Caps - Free Vitamin D-3 5000 IU 30 Softgels · Default Title. Confirm the package UPC/GTIN before buying.
Check brand website ↗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.
The brand-page price is shown as a shopping lead only. It is excluded from the exact-product price difference because the page does not publish this record's matching UPC/GTIN.
The observed listing and related brand page repeat 500 mg. That confirms cross-page consistency of the published claim, not the product contents.
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 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.