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- Only form of magnesium shown to cross the blood-brain barrier to promote optimum levels within the brain
- Supports improved cognitive function and working memory
- Promotes a healthy response to stress and a positive mood
- Encourages deep, restorative sleep
Product Details
- Only form of magnesium shown to cross the blood-brain barrier to promote optimum levels within the brain
- Supports improved cognitive function and working memory
- Promotes a healthy response to stress and a positive mood
- Encourages deep, restorative sleep
Swanson Magnesium L-Threonate featuring Magtein® promotes healthy neuronal activity for the support of healthy cognitive function. Traditional solutions for cognitive support involve stimulating the neurons to promote peak brain function. But over time, this can lead to burnout and have the opposite effect. Magnesium L-Threonate works differently. Its patented form of magnesium nourishes the brain where it works to enhance synaptic density and neuroplasticity. Essentially, it helps to maintain or even increase the connections between nerve cells in the brain. This can mean quicker, clearer thinking and support for cognitive functions such as learning and memory.
Recent studies of Magtein point to exciting findings. Researchers have found that consistent supplementation may improve cognition, cognitive age, reaction time and even memory. It may also positively impact heart rate, pointing to benefits for stress management.(1) Along the same lines, it may improve deep sleep quality,(2) which encourages a positive mood, alertness and healthy energy levels.
Preliminary research suggests great potential for this magnesium—the only form known to readily cross the blood-brain barrier and function within the brain. Studies have indicated an increase in levels of magnesium in the brain, where it is required for the production of serotonin(2) and ATP.(3) Serotonin in the brain impacts mood and nervous system function, while ATP is the source of cellular energy for high-demand organs such as the brain.
Protect the power of your mind with Swanson Magnesium L-Threonate featuring Magtein and learn more about this essential mineral in Magnesium Benefits & Uses.
Sources: 1) Lopresti AL, Smith SJ. The effects of magnesium L-threonate (Magtein®) on cognitive performance and sleep quality in adults: a randomised, double-blind, placebo-controlled trial. Front Nutr. 2026 Jan 12;12:1729164. 2) Hausenblas, Heather A. et al. Magnesium-L-threonate improves sleep quality and daytime functioning in adults with self-reported sleep problems: A randomized controlled trial, Sleep Medicine: X, Volume 8, 2024,100121. 2590-1427. 3) Hewlings, S. J., & Kalman, D. S. (2022). A randomized, double-blind, placebo-controlled, comparator trial evaluating Magtein® magnesium supplement on quality of life as related to levels of stress, anxiety, fear and other indicators. EC Nutrition, 17(3), 7–14.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Product Facts
Afternoon Serving
Supplement Facts
Serving Size 3 Vegan Capsules
Servings Per Container 30
| Amount Per Serving | % Daily Value |
|---|---|
| Magnesium (from Magtein® magnesium L-threonate) 144 mg | 34% |
| Magtein® magnesium L-threonate 2.01 g | * |
*Daily Value not established.
Other Ingredients: Vegan capsule (hypromellose), microcrystalline cellulose (plant fiber), magnesium stearate.
Suggested Use: As a dietary supplement, take three vegan capsules daily with water. For maximum benefit, take one vegan capsule in the afternoon and two vegan capsules in the evening.
Warning: For adults only. Consult your healthcare provider before using this or any product if you are pregnant or nursing, taking medication, or have a medical condition.
Storage Instructions: Keep out of reach of children. Do not use if seal is broken. Store in a cool, dry place.
Trademark Information: Magtein® is a trademark of and is licensed exclusively by ThreoTech LLC.
FAQ
- What Are the Benefits of Magnesium L-Threonate?
Magnesium L-threonate is a specialized form of magnesium commonly used to support brain health, cognitive function, and overall wellness. In addition to helping maintain healthy magnesium levels, it is often chosen by individuals looking to support memory, focus, learning, and healthy aging. Magnesium L-threonate may also help promote relaxation and support restful sleep as part of a balanced wellness routine. - How Is Magnesium L-Threonate Different from Other Forms of Magnesium?
Magnesium L-threonate differs from other forms of magnesium because it was specifically developed to support brain health. While forms such as magnesium citrate and magnesium glycinate are often selected for digestive or general wellness support, magnesium L-threonate is valued for its ability to effectively deliver magnesium to the brain. This unique characteristic has made it a popular choice for individuals focused on cognitive wellness and healthy aging. - How Long Does It Take Magnesium L-Threonate to Work?
The timeline can vary depending on individual factors such as overall health, lifestyle, and consistency of use. Some people choose magnesium L-threonate as part of their long-term wellness routine to support cognitive function, relaxation, and healthy aging. As with many supplements, consistent daily use is often recommended to help support the best results over time. - What Is Unique About Magtein®?
Magtein® is a patented form of magnesium L-threonate that has been studied for its ability to support brain health and cognitive function. Unlike traditional magnesium supplements, Magtein® was specifically developed to help deliver magnesium to the brain. This unique form is often featured in premium cognitive wellness formulas designed to support memory, focus, learning, and healthy aging. - What makes Swanson Ultra Magnesium L-Threonate different from standard magnesium supplements?
Swanson Ultra Magnesium L-Threonate features a specialized form of magnesium designed to support cognitive wellness. Unlike many traditional magnesium supplements that are primarily used for muscle, bone, or digestive support, magnesium L-threonate is valued for its ability to effectively deliver magnesium to the brain. This makes it a popular choice for individuals looking to support memory, focus, learning, and healthy aging while also benefiting from magnesium's role in overall wellness. - Is Swanson Ultra Magnesium L-Threonate suitable for special diets?
Yes. Swanson Ultra Magnesium L-Threonate is formulated to accommodate a variety of dietary preferences and wellness lifestyles. This supplement is vegan, gluten-free, non-GMO, and dairy-free, making it a convenient choice for individuals seeking brain and cognitive wellness support without animal-derived ingredients or common dietary allergens. Its clean, plant-based formula helps you support your wellness goals while staying aligned with your dietary needs.