“in a GMP facility that processes other ingredients containing these”
Evidence →“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.
Exact product checked · GTIN 00733739004826NOW Foods · checked Jul 27, 2026Package says manufactured for: NOW FOODS · 395 S. Glen Ellyn Rd. Bloomingdale, IL 60108, USA
Quick read · NOW Foods
NOW Foods Supplements, Niacin (Vitamin B-3) 500 mg
Checked against public sources on July 27, 2026 · LookCloser does not sell or recommend supplements.
250tablets
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?Panel read — dose not verified1 ingredient listed; no advertised amount we could confirm against them
What a serving costsNo price found for this exact barcode
Is it tested?No testing claim made
Who’s behind it?No exact match in USPTO
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.
1◖ partly confirmedno contradictions · brand-level recall on file
The label itself
What the Supplement Facts panel says
| Niacin (as Nicotinic Acid) (Vitamin B-3) | 500 mg |
|---|
Printed on the package: Vegetarian/Vegan · K · GMP · QUALITY ASSURED · Certifications Matter · Intertek GMP certification · Intertek · Vitamin Angels
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.
Marketing claims, checked
The checks, one by one
The public sources did not settle the marketing promises on this label.
◐Partly confirmed1
Ingredient research can support context, but it is not a trial of this exact product.
Quick read · 4 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. Now Foods recalled a different product on May 8, 2025. FDA has since closed that case. The recalled item was “NOW Nutritional Yeast Powder, Nt. Wt. 10oz. UPC 7 33739 02460 2”. …
Locked evidence record →Open the full source-linked findingCheckedIs the label honest?
Every ingredient shows its amount · 1 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?
The barcode identity checks out · 733739004826.
The barcode matches, so we are checking the right product rather than a look-alike.
Evidence and sources
UPCitemdb resolves 733739004826 to "Now Foods Niacin 500mg 250 Tablet" (NOW) — consistent with this listing.
Locked evidence record →Open the full source-linked findingCheckedCan you trust the review pattern?
We can see 5 of this product’s 768 reviews — the count rose between February 1 and July 5, 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 763 to 768 between February 1 and July 5, 2026. The largest rise inside any single 30-day window was about 2, so the count moved in steps rather than in one burst.
Locked evidence record →Open the full source-linked findingWhat remains open 2
- We have not found a public label filing for this exact product.
- Brand ownership is not settled in this record.
These are evidence gaps, not strikes against the product.
Where it sells
Price check for this exact product
Amazon
Exact UPC/GTIN match$15.91
matching UPC/GTIN · checked Jul 27, 2026
View on Amazon ↗iHerb
Exact UPC/GTIN match$15.91
matching UPC/GTIN · checked Jul 27, 2026
View on iHerb ↗Target
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 Target ↗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 at the same price at check time.
No official brand storefront is confirmed in this record. That is neutral, but it prevents a direct brand-price, label, review, and document check.
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 27, 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.