The dose claim fits the serving — physically possible
Claimed magnesium 200.0 mg is 8% of the ≈2,500 mg serving (serving size printed on the packaging (photo-read from listing images)) — within physical limits.
Full record · 657814069893 · back to the summary
MYOXCIENCE Brain Mag | Magnesium L-Threonate Magtein & Magnesium Glycinate Powder (Unfla…
Exact product checkedGTIN 00657814069893 · checked 2026-07-26
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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
The listing amount and panel row need explanation
MARKETING200 mg — per-serving claim
PANELMagnesium 144 mg — panel readMagnesium 144 mg
amount differsWe compared the listing claim (200 mg) with the panel row (144 mg magnesium). They do not match within the report tolerance; the source label or serving basis needs checking.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Calories | 0 | — | |
| Total Carbohydrate | 0 g | — | |
| Magnesium | 144 mg | — | |
| Magnesium (as Mg) | 3 % | — |
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; any remaining comparison concerns the front-label framing.
vision:google/gemini-flash-1.5 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
Every ingredient amount is disclosed
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
Exact trademark owner identified
USPTO lists Mutzel Nutrition, LLC (LIMITED LIABILITY COMPANY) in Washington, 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.
Documented concerns
What needs caution0
These are documented contradictions or claims that need more evidence. They are separate from missing data.
No contradictions or product-specific cautions were found at this check depth.
Unresolved public record
What is still missing9
We looked for these signals but could not settle them from public sources. A gap is not a strike.
Listing and photo-read panel need confirmation
The listing says 200 mg, while our photo read produced Magnesium at 144 mg per serving. OCR can confuse small units and digits, so this remains unresolved until checked against the physical label.
Review-count history: not available
Marketplace rating not shown★ — rating count unavailable. No exact-listing count history was available, so no review-pattern claim is made.
Magnesium amount, in daily-intake context
label states 200 mg/serving — about 48% of the adult daily reference (adult RDA 310–420 mg elemental; NIH sets 350 mg/day as the supplemental upper level for elemental magnesium). A single serving isn’t meant to supply a full day, so this is context, not a shortfall. Caveat: chelate labels (glycinate, citrate) often state compound mass, which reads ~5–7× higher than elemental magnesium — the Supplement Facts panel settles which is meant. Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation.
Photo-read pack math is internally consistent
60 servings × 2.5 g = 150 g, matching the printed net weight 149 g (NET WT. 5.3 OZ (149 G)). This checks agreement within the photo read; it is not an independent contents test.
Cost to reach a studied dose
At 1.0 serving(s) a day to reach the low end of the studied range (200–420 mg), this product runs roughly $28 per month. A price observation, not a recommendation.
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.
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.
UPC valid, no independent record
Check digit passes; no third-party database record found yet. Coverage gaps are common — not a strike.
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
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.
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 657814069893.
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
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 |
|---|---|---|
| Benefit claim “…Supports Cognitive Function: Formulated with Magtein (magnesium L-threonate) to help maintain healthy brain magnesium levels, promoting memory and learning capabilities.” | Partly supported We looked for: whether the ingredient doses on the label match the doses used in published research | Ingredient evidence exists; on dose: label states 200 mg/serving — about 48% of the adult daily reference (adult RDA 310–420 mg elemental; NIH sets 350 mg/day as the supplemental upper level for elemental magnesium). A single serving isn’t meant to supply a full day, so this is context, not a shortfall. Caveat: chelate labels (glycinate, citrate) often state compound mass, which reads ~5–7× higher than elemental magnesium — the Supplement Facts panel settles which is meant. |
“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 |
|---|---|---|
| Magnesium | shaded = doses used in studies (200 mg–420 mg) · bar = this label | 144 mg — below 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
✓ Per-serving dose established✓ UPC / GTIN published✓ Supplement Facts visible in photos✓ Brand's own store found· Found in NIH's label catalog (DSLD) — not published· Third-party lab named or registry-certified — 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 | 657814069893 — via source listing UPC |
| Brand | MYOXCIENCE |
| Source listing identifier | B081TKGV1J |
| Retailer listing title | MYOXCIENCE Brain Mag | Magnesium L-Threonate Magtein & Magnesium Glyci… show full titleMYOXCIENCE Brain Mag | Magnesium L-Threonate Magtein & Magnesium Glycinate Powder (Unflavored) (60 Servings) |
| USPTO brand owner | Mutzel Nutrition, LLC · LIMITED LIABILITY COMPANY · Washington, USA |
| Owner filed address | 6513 132nd Ave NE, Suite 124, Kirkland, Washington 98033, UNITED STATES |
From the label (photo-read)
| Serving size | 1 Scoop |
| Servings per container | 60 |
| Net weight | NET WT. 5.3 OZ (149 G) |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Calories | 0 | High clearly legible in the photo |
| Total Carbohydrate | 0 g | High clearly legible in the photo |
| Magnesium | 144 mg | High clearly legible in the photo |
| Magnesium (as Mg) | 3 % | High clearly legible in the photo |
Claims printed on the packaging:
“Prioritizing Health” · “Optimizing Performance” · “Does Not Contain: Wheat, gluten, soy, animal or dairy products, fish, shellfish, peanuts, tree nuts, egg, ingredients de” · “*These statements have not been evaluated by the Food and Drug Administration.” · “These products are not intended to diagnose, treat, cure, or prevent any disease.” · “Prioritizing Health | Optimizing Performance” · “Featuring magnesium L-threonate and acetyl taurinate for the brain.” · “NEW FORMULA & LOOK!”
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 ↗ | $55.00 checked Jul 26, 2026 — varies by variant/session; price history pending |
Brand store myoxcience.com: 52 supplement products (+7 merch items) — for comparison, single-focus brands typically carry 5–30 products; very broad catalogs are common among companies that rebrand ready-made formulas — a pattern note, not a verdict.
Reference links for identification only — LookCloser has no affiliate relationships and earns nothing from any link on this page.
Ingredient science — NIH references
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 Dosage: label states 200 mg/serving — about 48% of the adult daily reference (adult RDA 310–420 mg elemental; NIH sets 350 mg/day as the supplemental upper level for elemental magnesium). A single serving isn’t meant to supply a full day, so this is context, not a shortfall. Caveat: chelate labels (glycinate, citrate) often state compound mass, which reads ~5–7× higher than elemental magnesium — the Supplement Facts panel settles which is meant.
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 657814069893 · built July 26, 2026 · lookcloser.ai · corrections@lookcloser.ai