Checked against public sources between July 21 and August 31, 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.
| NMN (beta-nicotinamide mononucleotide) | 250 mg |
|---|
Printed on the package: GMP · GLUTEN FREE · FDA · NSF · GMO & GLUTEN FREE · GMP Quality Certification · GOOD MANUFACTURING PRACTICE · THIRD PARTY LAB TESTED
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 brand page (NSF), but we found no lot-specific certificate of analysis.
Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.
Ingredient research can support context, but it is not a trial of this exact product.
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.
The brand's store lists this exact barcode as “Genex Formulas 250mg NMN Nicotinamide Mononucleotide (60 Capsules)” (variant: Default Title) — identity confirmed across retailer listings.
Locked evidence record →Open the full source-linked findingThese are evidence gaps, not strikes against the product.
The label amount is shown beside the range used in the linked ingredient studies.
250 mg per serving — within the 250–1000 mg/day used in the linked studies.
Not a score. Studies disagree with each other and change over time, so this sits beside the evidence rather than counting toward it — it is here so you can read the sources yourself.
The panel lists 250 mg of NMN (nicotinamide mononucleotide) per serving. Studies we found used 250 mg–1 g a day, so this sits inside that range.
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
$0.67 per labeled serving
matching UPC/GTIN · checked Sep 1, 2026
View on Amazon ↗$0.83 per labeled serving
matching UPC/GTIN · checked Jul 21, 2026
View on 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 ↗Same UPC/GTIN observed across 2 sellers. Amazon was lowest at $19.99; Brand website was highest at $24.99 — a $5.00 range at check time.
The observed listing and exact brand page repeat 250 mg, 60 capsules. 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 published counts do not line up. The brand page publishes 218; the retailer surface shows 2,700. Different systems can collect different review pools, so this is a signal to inspect, not proof that reviews were manipulated.
The brand page did not expose a complete star-by-star breakdown in the captured structured data, so LookCloser cannot test whether lower-star reviews were omitted. Source: exact barcode-bound brand product page · retailer surface · counts do not prove authenticity.
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.