Magnesium L-Threonate (Magtein)
Scored by the Formulate Research Team · Last reviewed July 2026
Overview: Momentous Magnesium L-Threonate (Magtein)
Enhances the quality of sleep and produces a calming effect Helps support cognitive function including memory, learning, attention, and focus Helps increase magnesium levels in the brain which may promote cognitive performance and overall brain health
Score Breakdown
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Ingredients per Serving
| Ingredient | Amount |
|---|---|
| Magnesium2g Magtein® Magnesium L-Threonate250 systematic reviews · 790 randomised trials | 145 mg |
Certifications & Testing
Other Ingredients
Rice Flour, Hypromellose, Magnesium Stearate, Silica
Recommended Use
Take 3 Capsules daily, or as directed by your healthcare practitioner.
Warnings
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Frequently Asked Questions
What is Momentous Magnesium L-Threonate (Magtein)'s Formulate score?
Momentous Magnesium L-Threonate (Magtein) scores 86 out of 100 (grade A-) on Formulate's ingredient-level rubric, which weighs evidence quality, dose accuracy, bioavailability, transparency, safety, and manufacturing practices.
Is Momentous Magnesium L-Threonate (Magtein) worth it?
Momentous Magnesium L-Threonate (Magtein) scores 86/100 (grade A-). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Momentous Magnesium L-Threonate (Magtein)?
Each serving contains Magnesium (145 mg). Serving size: 3 Capsules. 30 servings per container.
How do I take magnesium l-threonate (magtein)?
Take 3 Capsules daily, or as directed by your healthcare practitioner.
Who makes Magnesium L-Threonate (Magtein)?
Magnesium L-Threonate (Magtein) is made by Momentous. See Formulate's full grade and product lineup for Momentous on its brand page.
Is Momentous Magnesium L-Threonate (Magtein) third-party tested?
Momentous lists the following certifications and testing for this product: NSF Certified, NSF Certified for Sport, Gluten Free, Vegan, GMP Certified.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.