Momentous Magnesium L-Threonate (Magtein®)
Magnesium L-Threonate using patented Magtein® form (from MIT research) shown to cross the blood-brain barrier. Supports cognitive function, learning, sleep quality, and calm brain activity. 90 capsules (30 servings at 3 caps). NSF Certified for Sport. Popularized by Dr. Andrew Huberman's protocols.
Pending
Score Pending
We have not published a numerical Ethos Score because this product still needs structured evidence-and-dose and formula-quality review. Missing research is not treated as a pass or a penalty.
The Takeaway
This listing includes 1 published purchase variant and 1 disclosed ingredient record for comparison.
Best For
- • Shoppers comparing available supplements formula and price details before buying.
- • People who want to see whether the formula discloses Magnesium L-Threonate (Magtein Magnesium L-Threonate).
Watch Out For
- • A public Ethos Score is still pending structured evidence and formula review.
- • No product-specific contaminant finding is available yet; this is not a purity pass.
- • No active certification record is listed in the catalog.
Why this score
Each dimension stays pending until we have the specific structured inputs required to score it.
A product-specific evidence and dose mapping has not been published yet.
A structured formula-transparency classification has not been published yet.
No active certification record is listed in our catalog yet.
No product-specific contaminant finding is available. That is not a purity pass.
A like-for-like category value comparison has not been published yet.
Real Cost
Momentous Magnesium L-Threonate — 90 Capsules (30 Servings) · Momentous Magnesium L-Threonate 90 Capsules
One-time purchase
$49.99
Cost per serving: $1.67
No verified official purchase link is available
Formula
Key Active Ingredients
Magnesium L-Threonate (Magtein Magnesium L-Threonate)
2000 mg3 capsules
Testing & Transparency
Independent certification
No public certification verification is listed
Public test source
No product-specific test source is linked
Toxin & Forever Chemical Report
This section shows product-specific contaminant and PFAS (forever chemical) test results where available. “No Product-Specific Data Found” is not a purity pass — it means no public test result was located for this exact product. Organic, non-GMO, and similar certifications are agricultural standards and do not verify contaminant levels.
No product-specific contaminant data is available. That is not a purity pass.
Evidence
Magnesium L-Threonate: Brain Magnesium and Memory
Research sourceA 2010 MIT study by Slutsky, Liu et al. published in the journal Neuron found magnesium L-Threonate (Magtein) elevated brain magnesium concentrations more effectively than other magnesium compounds in animal models, leading to improved short- and long-term memory. The Magtein ingredient used in this product is based on this foundational research. Human clinical data exists but remains more limited; direct translation from animal models at OTC supplement doses is not fully established.
Sources
No source links are published for this product yet.