Exact trademark owner identified
USPTO lists NGUYEN, TUONG (INDIVIDUAL) in USA for the exact brand wordmark. This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this product.
Full record · 857917007307 · back to the summary
Smarternutrition Smarter Magnesium Stress & Sleep Formula - Tablets
Exact product checkedGTIN 00857917007307 · checked 2026-08-11
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How to read this report
What this is. We compare what a listing claims against what public records show — label arithmetic, barcode registries, NIH’s label catalog, FDA enforcement data, certification registries, and published research. Every statement below traces to one of those.
What the states mean. Confirmed = an outside source agrees. Contradicted = an outside source disagrees. Caution = something needs explaining. No data = we looked and found nothing — a gap, not a strike.
What it is not. A clean record is not an endorsement and never proof a product works. A thin record is not an accusation. We publish evidence and gaps; the conclusion is yours. Nothing here is medical advice.
Something wrong? Every figure is meant to be checkable — sources are named and linked. Send a correction and we’ll fix the record.
Panel, decoded
What the label discloses
3listed rows
2separately quantified
1combined blend totals
The listing-image panel publishes 2 separately ingredients with amounts and 1 combined blend total. Ingredients inside a blend do not have separate amounts.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Vitamin B6 (as pyridoxine HCl) | 1.5 mg | — | |
| Elemental Magnesium Complex (From 1230 mg of Magnesium Proprietary Blend) (Aquamin®, Magnesium Citrate Glycenate, Magnesium Malate, Magnesium Bisglycinate Chelate) | 280 mg | — | |
| L-Theanine (AlphaWave®) | 200 mg | — |
FDA rules (21 CFR 101.36) require the amount of each dietary ingredient per serving unless hidden in a listed “proprietary blend” (legal, but a transparency yellow flag). A label stating no amount at all is non-compliant — a checkable red flag. This panel states amounts; the open question is whether those listed amounts are independently verified and how they compare with relevant research.
vision:claude-cli:subscription Amounts are shown as listed panel data, not independently lab-tested contents.
Every check we ran
Confirmed evidence
What checked out3
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Confirmed
Found on the brand's own store
The brand's store lists this exact barcode as “Smarter Magnesium Stress & Sleep Formula - Tablets” (variant: 1 Bottle) — identity confirmed across retailer listings.
Barcode confirmed in an outside database
UPCitemdb resolves 857917007307 to "Smarter Nutrition Multi-Active Magnesium Tablets + AlphaWave(TM) L-Theanine – Me" () — consistent with this listing.
Documented concerns
What needs caution1
These are documented contradictions or claims that need more evidence. They are separate from missing data.
Unresolved public record
What is still missing8
We looked for these signals but could not settle them from public sources. A gap is not a strike.
“Lab tested” claimed, but no lab or report named
The observed listing claims third-party testing without naming a lab or certifier. No product-bound report is saved, so the claim cannot be verified as stated. Under NSF/ANSI 173, NSF lists Smarter Nutrition Inc. products, including Smarter Nutrition Smarter Curcumin with Black Seed Oil Softgels, but the saved registry result does not cover this exact SKU. IFOS, USP, and Informed-Sport were not checked in this record.
Multi-ingredient formula — panel read, serving weight unknown
We read the full Supplement Facts panel from the listing-image panel (below), but the label doesn’t state a serving weight, so the arithmetic can’t run. A gap in the label’s information, not evidence of a problem.
Research context is available for the listed ingredients
Published sources describe how magnesium have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation.
Certified by NSF — contents and contaminants checked
Smarter Nutrition Inc. appears in NSF’s certified-products registry with 2 certified product(s), but we couldn’t confirm this exact listing is among them. Closest listed product: “Smarter Nutrition Smarter Curcumin with Black Seed Oil Softgels”. Certification covers contents and contaminants — not effectiveness.
Public label filing not saved
We have not found a public label filing for this exact product. That is a gap in our records, not evidence that no filing exists.
No recall found — which is not the same as being tested
This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records.
This item belongs to a catalog variation family
The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.
180-day review-count history is on file
Exact-listing history records written-review counts from 3,428 on 2025-08-09 to 3,423 on 2026-08-03 (net -5). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
What to ask and check
What would settle the open questions
Why is this shown?
Everything we couldn’t verify is something a person can still ask about. Rather than leave gaps sitting as dead ends, we turn each one into a specific question — the exact document, citation, or number that would settle it — plus the things you can confirm yourself with the bottle in your hand.
Ask the brand or seller
1
Can you send the certificate of analysis (COA) for the lot number on my bottle?
A real COA names the testing laboratory, the test date, the lot it covers, and what was measured. “Third-party tested” with no document behind it is a marketing sentence.
2
Which specific study supports this claim — and was it run on this exact formula?
Ask for the citation, how many people took part, the dose used, and whether the study tested this product or just one ingredient in it. Ingredient research is not product evidence.
3
Is this label filed with NIH’s Dietary Supplement Label Database (DSLD)?
Filing is voluntary, so absence proves nothing — but a filed label puts the full ingredient table on public record where anyone can read it.
4
Where are the ingredients sourced, and where is the product manufactured?
“Made in USA” can describe only the final bottling step. Ask which country the actives came from and whether the facility is audited.
5
What is the amount of each ingredient inside the proprietary blend?
A blend total tells you nothing about whether any single ingredient reaches a dose used in research. Brands may decline — that answer is informative too.
Most brands and sellers publish a contact route. A clear answer adds evidence to the record; no answer leaves the question open.
Check for yourself — no one’s permission needed
1
Compare the panel on the bottle in your hand to the one shown in this record.
Ours was read from listing photos and can contain reading errors. The physical label is the source of truth — if they disagree, tell us and we’ll correct the record.
2
Scan the barcode on the package and confirm it reads 857917007307.
A mismatch between the barcode on the box and the one on the listing is worth pausing over — it can indicate a different variant, a repack, or a counterfeit.
3
Look the product up yourself in NSF’s certified-products registry.
Search “Smarter Nutrition Inc.” at info.nsf.org — certification covers contents and contaminants, not effectiveness.
4
Check the lot number and expiry on the bottle against any COA you’re given.
A certificate that doesn’t name your lot doesn’t describe what you’re holding.
These are the open questions on this specific record — not a warning about the product, and not a suggestion to buy or avoid it. Getting them answered is how you decide for yourself.
What the listing promises — claim by claim
Why is this shown?
A listing’s promises are the reason people buy. Each one gets its own row: what was promised, what evidence would settle it, and what we could actually find. We never call a claim false — only whether proof proportionate to it exists on the public record.
| Claim | Status | What we found |
|---|---|---|
| Clinical-evidence claim “…CLINICALLY PROVEN SLEEP SUPPORT: This magnesium complex is formulated with AlphaWave L-Theanine, clinically proven in a double-blind study to support stress relief, slee” | No evidence located We looked for: a named, citable clinical study of this product or formula | We found no named, citable study of this product or formula. The claim may rest on ingredient research rather than a trial of this product. |
| Quality-testing claim “…3rd PARTY TESTED, USA MANUFACTURED: Smarter Nutrition Magnesium is manufactured in the USA with clean, premium ingredients in a cGMP-certified facility with third-party ” | Claimed, not verifiable We looked for: the observed listing, saved brand product page, the NSF/ANSI 173 certified-products registry, any linked COA or test report; IFOS, USP, Informed-Sport were not queried | No named laboratory or lot-specific certificate was found for this exact product. The exact brand page names no testing issuer and links no product-bound report. Under NSF/ANSI 173, NSF lists Smarter Nutrition Inc. products, including Smarter Nutrition Smarter Curcumin with Black Seed Oil Softgels, but not this exact SKU. IFOS, USP, and Informed-Sport were not checked in this record. This is a public-evidence limit, not a finding that testing did not occur. |
| Origin claim “…3rd PARTY TESTED, USA MANUFACTURED: Smarter Nutrition Magnesium is manufactured in the USA with clean, premium ingredients in a cGMP-certified facility with third-party ” | Claimed, not verifiable We looked for: customs records or label filings showing where ingredients were sourced and where it was made | “Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product. |
| Benefit claim “Smarter Nutrition Magnesium Complex - Chelated Magnesium Glycinate with Citrate, Malate and L-Theanine for Sleep, Muscle Relaxation and Stress Support - Non-GMO - 60 Tabl” | Partly supported We looked for: whether the ingredient doses on the label match the doses used in published research | Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed. |
“No evidence located” does not mean a claim is false — it means the seller has not put evidence proportionate to the claim on the public record, and we could not find any. Absence of proof is not proof of absence.
This label vs. the doses studied
Why is this shown?
An ingredient can be well-studied at one amount and barely studied at the amount in your bottle. This lines the label up against the doses researchers actually used. It answers ‘are these the same numbers?’ — never ‘should you take this?’
| Ingredient | Where this label sits | Reading |
|---|---|---|
| Elemental Magnesium Complex (From 1230 mg of | shaded = doses used in studies (200 mg–420 mg) · bar = this label | 280 mg — within the studied range |
Matching a studied dose does not mean the product works, and missing it does not mean it fails — it shows whether the label and the research are talking about the same amounts. Not a recommendation to take any amount.
Documented cautions
- magnesium — daily oral use; chelated forms (glycinate) are studied for absorption — note labels may state compound mass rather than elemental magnesium, which differs ~7-fold
Statements from published sources about these ingredients — not advice about this product, and not a complete safety review. Anyone taking medication should talk to a pharmacist or clinician.
Verifiability profile — 4 of 6 public signals
✓ UPC / GTIN published✓ Supplement Facts visible in photos✓ Brand's own store found✓ Third-party lab named or registry-certified· Per-serving dose established — not published· Found in NIH's label catalog (DSLD) — not published
What this listing gives the public to check. Publishing these signals doesn't prove quality — but withholding them means claims can only be taken on faith.
Identity
| UPC (barcode) — also our record ID | 857917007307 — via source listing UPC |
| Brand | SMARTERNUTRITION |
| Source listing identifier | B07XPGMNBW |
| Retailer listing title | Smarter Nutrition Magnesium Complex - Chelated Magnesium Glycinate wit… show full titleSmarter Nutrition Magnesium Complex - Chelated Magnesium Glycinate with Citrate, Malate and L-Theanine for Sleep, Muscle Relaxation and Stress Support - Non-GMO - 60 Tablets[30DaySupply] |
| USPTO brand owner | NGUYEN, TUONG · INDIVIDUAL · USA |
| Owner filed address | 10132 TYLER CT., WESTMINSTER, CALIFORNIA 92683, UNITED STATES |
From the label (photo-read)
| Serving size | Serving Size: 2 Tablets |
| Servings per container | 30 |
| Pack statement | 60 Tablets |
| Badges printed on pack | cGMP, Non-GMO, 3rd Party Tested, Manufactured in the USA |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Vitamin B6 (as pyridoxine HCl) | 1.5 mg | High clearly legible in the photo |
| Elemental Magnesium Complex (From 1230 mg of Magnesium Propr | 280 mg | High clearly legible in the photo |
| L-Theanine (AlphaWave®) | 200 mg | High clearly legible in the photo |
Claims printed on the packaging:
“Non-Habit Forming.” · “Melatonin Free.” · “Magnesium Glycinate blend with L-Theanine to help you relax and improve sleep.*” · “Dietary Supplement” · “SUPPORTS:” · “Restful Sleep Patterns*” · “Relaxation*” · “Muscles, Bones & Nerves*”
Read by a vision model from 8 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Where it sells
| Seller | Price |
|---|---|
| Retailer listing ↗ | $19.95 checked Aug 11, 2026 — varies by variant/session; price history pending |
| Brand store (smarternutrition.com) ↗ | $29.00 variant: 1 Bottle — matching UPC/GTIN |
Brand store smarternutrition.com: 10 supplement products (+3 merch items) — a single-category catalog.
Reference links for identification only — LookCloser has no affiliate relationships and earns nothing from any link on this page.
Ingredient science — NIH references
Vitamin B6 — NIH ODS · MedlinePlus · PubMed (2,372) · UL 100 mg (adults; chronic high intake linked to neuropathy)
Magnesium — NIH ODS · MedlinePlus · PubMed (11,814) · UL 350 mg (SUPPLEMENTAL magnesium only (not from food))
Reference data from the NIH Office of Dietary Supplements, IOM Dietary Reference Intakes, and PubMed. A Tolerable Upper Intake Level is a documented reference figure, not a safety verdict — both the listed amount and the reference are shown for your own judgment. LookCloser gives no medical advice.
Related research & consistency
magnesium — NIH ODS — Magnesium fact sheet · PubMed search: magnesium glycinate supplementation · WebMD: magnesium · ClinicalTrials.gov — 3,206 registered studies
ℹ Use pattern in research: daily oral use; chelated forms (glycinate) are studied for absorption — note labels may state compound mass rather than elemental magnesium, which differs ~7-fold.
These notes state where label numbers and marketing framing sit relative to published research — documentation for your own judgment, not medical advice. LookCloser does not advise for or against taking any supplement.
Record 857917007307 · built August 11, 2026 · lookcloser.ai · corrections@lookcloser.ai