Headline: Smart Support for a Stronger Mind
Sub-copy: Innovative magnesium formula to fuel brain health, reduce stress, and boost mental performance.
Brain-Targeted Magnesium for Calm Focus
Magnesium L-Threonate helps support memory, mental clarity, and deeper sleep by delivering magnesium where it matters most—your brain.
The Momentous Standard™
We started Momentous to bring credibility back to supplements. That means science-backed ingredients, expert formulation, and independent testing that verifies what’s inside every product. Guided by the Momentous Standard®, we don’t chase perfection—we pursue progress, raising the bar for sourcing, science, and testing in service of Performance for Life™.
Your Achievement Is Our Job
We've brought together the best so you can be your best. The greatest minds in science, psychology, and performance work with us with one common goal—to help you pursue your potential.
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x Dr. Stacy Sims
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x Dr. Kelly Starrett
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x Dr.Jeremy London
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x Dr. Andy Galpin
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x Jordan Mazur
Trusted And Used By The Best
Momentous offers a wide range of tools and knowledge backed by world-renowned experts. Together we're committed to helping you achieve your health and wellness goals.
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Pro Team and Athlete Adoption
Pro Team and Athlete Adoption
We are honored to work with more than 150 teams in professional and NCAA sports, with 100% of NFL teams using Momentous products in their locker rooms. We are proud to work with Olympians, world record holders, and elite athletes across a wide range of sports, many of whom choose us because of our high-quality ingredients and rigorous testing.
Backed by Science
Backed by Science
Momentous works with some of the world's leading scientists who use the latest research to help us develop best-in-class products, often using patented ingredients and direct clinical proof. We also work with performance experts from the NFL to the NCAA who share their knowledge from elite sports to help us bring truly innovative products to market.
U.S. Military Funding and Adoption
U.S. Military Funding and Adoption
The U.S. Department of Defense has awarded 11** innovation and research contracts to Momentous to help further human performance for military personnel. This funding has supported clinical research and product development, enabling us to manufacture products that are simply ahead of their time OR unlike anything else on the market.
Impeccably High Standards
Meticulously sourced and combined
Magnesium L-Threonate is sourced through a meticulous manufacturing process that combines magnesium with threonic acid to create a highly bioavailable form that can effectively reach the brain.
What To Expect With Magnesium L-Threonate
Take 3 capsules about 30–60 minutes before bed. Many people notice initial improvements in as little as 7 days, with best results typically building over 4 weeks of consistent use. With regular daily supplementation, you can expect better sleep quality, improved cognitive function, sharper focus, and stronger memory retention over time.
Support Memory, Focus, And Peak Brain Performance—When It Matters Most
Big days demand more than motivation. Whether you’re in back-to-back meetings, deep study mode, or pushing through a high-pressure deadline, mental clarity can make the difference. This formula is designed to support memory, focus, and overall cognitive performance, helping you stay sharp, steady, and ready to execute when it counts.
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Supports Memory & Focus
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Enhances Cognition
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Improves Sleep Quality
Magtein Magnesium L-Threonate For Brain Bioavailability
Magnesium L-Threonate penetrates the blood-brain barrier at higher levels than other forms of magnesium, making it the most bioavailable magnesium for the brain.Magtein is a patented form of Magnesium L-Threonate used in clinical studies.
Customer Reviews
FAQs
What is Magnesium Threonate and how is it different from other magnesium supplements?
What is Magnesium Threonate and how is it different from other magnesium supplements?
Magnesium Threonate is a unique form of magnesium that’s specially formulated to cross the blood-brain barrier more effectively than many other magnesium types — helping increase magnesium levels in the brain for cognitive support and overall neurological health.
How can this product benefit me?
How can this product benefit me?
Regular use may help support memory, learning, focus, and attention, while also promoting calm brain activity and improved sleep quality. It increases brain magnesium levels, which are critical for synaptic function and cognitive performance.
When should I take Magnesium Threonate?
When should I take Magnesium Threonate?
For sleep benefits, it’s typically recommended to take this supplement about 30–60 minutes before bedtime. Some people also split their intake throughout the day to support mental clarity and focus.
Are there any side effects or safety considerations?
Are there any side effects or safety considerations?
Magnesium supplements are generally well tolerated, but high doses can sometimes cause mild digestive discomfort such as diarrhea or stomach cramps. If you’re on medication, have kidney issues, or are pregnant, consult with a healthcare professional before use.