LookCloser.aipublic supplement evidence
Exact product checked · GTIN 00733739000866NOW Foods · checked Jul 21, 2026Package says manufactured by: NOW FOODS · 395 S. Glen Ellyn Rd. Bloomingtondale, IL 60108, USA
Quick read · NOW Foods

NOW Supplements, NAC (N-Acetyl Cysteine) 600 mg with…

Checked against public sources between July 21 and July 29, 2026 · LookCloser does not sell or recommend supplements.

250capsules

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 verified2 ingredients 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

Serving size 1 Capsule

Selenium (elemental)25 mcg
N-Acetyl Cysteine (NAC)600 mg

Printed on the package: Non-GMO · K · GMP ASSURED · GMP CERTIFICATION · intertek · QUALITY · GMP · ASSURED

We read 2 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

“Non-GMO, Made without Gluten, Kosher, Dairy Free, Egg Free, Nut Free, Soy Free, GMP Quality Assured: A-rated, third-party certification m”

“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.

Evidence →

Ingredient research can support context, but it is not a trial of this exact product.

Quick read · 3 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 finding
CheckedIs the label honest?

Every ingredient shows its amount · 2 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 finding
CheckedCan you trust the review pattern?

We can see 89 of this product’s 1,922 reviews — the count rose between August 16, 2025 and August 27, 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 1,833 to 1,922 between August 16, 2025 and August 27, 2026. The largest rise inside any single 30-day window was about 12, so the count moved in steps rather than in one burst.

Locked evidence record →Open the full source-linked finding
What 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
$21.85

matching UPC/GTIN · checked Sep 2, 2026

View on Amazon ↗

iHerb

Exact UPC/GTIN match
$25.19

4.8/5 · 45,777 ratings

matching UPC/GTIN · checked Jul 29, 2026

View on iHerb ↗

Target

Not confirmed
No 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 confirmed
No 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. Amazon was lowest at $21.85; iHerb was highest at $25.19 — a $3.34 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.

Read / share full evidence →

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.