Smart Support For A Stronger Mind

Innovative magnesium formula to fuel brain health, reduce stress, and boost mental performance.

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    Smart Support For A Stronger Mind

    Innovative magnesium formula to fuel brain health, reduce stress, and boost mental performance.

    All Products

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    Omega-3 Fatty Acids Help Maintain Healthy Cholesterol Levels And Support Overall Heart And General Health.

    • Support Cardiovascular Health

    • Enhance Cognitive Function

    • Aid Muscle and Joint Recovery

      Heart Health In Every Dose

      A premium Omega-3 formula designed to support heart health, healthy inflammation response, and overall wellness. Optimized for athletes, healthy aging, and anyone looking to support long-term cardiovascular and whole-body health.

      Momentous Omega-3 stands out for its exceptional purity, potency, and sustainability.

      NSF Certified for quality and purity, enhanced with lipase to improve bioavailability, and sustainably sourced from small fish in the cold waters of Norway.

      Every Batch Tested For Purity And Quality

      Each batch is third-party tested for heavy metals, including lead and mercury, as well as harmful additives and label accuracy—ensuring clean, safe, and consistent quality you can trust.

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      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.

      • x Dr. Stacy Sims

      • x Dr. Kelly Starrett

      • x Dr.Jeremy London

      • x Dr. Andy Galpin

      • 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.

        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

        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

        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.

        “Omega-3s Are Essential For Maintaining Mitochondrial And Cellular Health”

        Dr. Stacy Sims on Omega-3
        Female Exercise Physiologist and Nutrition Scientist

        Sourced From Wild-Caught Anchovies, Sardines, And Mackerel In Cold, Pristine Norwegian Waters—Naturally Lower In Heavy Metals And Sustainably Harvested For Long-Term Ocean Health.

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        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.

        • Supports Memory & Focus

        • Enhances Cognition

        • Improves Sleep Quality

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            Magtein Is a Clinically Studied Form of Magnesium L-Threonate That Crosses the Blood-Brain Barrier for Superior Brain Bioavailability

          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.

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          Customer Reviews

          FAQs

          What does Magnesium Threonate support?

          It supports brain health, memory, focus, and overall cognitive performance.

          Who should use it?

          Anyone looking to support mental clarity, focus, and long-term brain wellness.

          What makes it special?

          It is one of the few magnesium forms shown to effectively cross the blood-brain barrier.

          Is it suitable for daily use?

          Yes, it is designed for consistent daily supplementation.

          When will I notice results?

          Some users notice relaxation quickly, while cognitive benefits build over consistent use.

          What does Omega-3 do?

          Omega-3 fatty acids help support heart, brain, and overall body function as part of daily nutrition.

          Who should take Omega-3?

          Anyone looking to support cardiovascular health, cognitive performance, or general wellness.

          Where is it sourced from?

          It is sourced from wild-caught fish in clean, cold waters and carefully purified for quality.

          Is it tested for quality?

          Yes. Every batch is third-party tested for heavy metals, contaminants, and purity standards.

          Can I take it every day?

          Yes, it is formulated for consistent daily use.