Brain-Mag Pro Magnesium L-Threonate - 90 capsules

SKU: PH584

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Crosses the blood-brain barrier to support healthy mood, cognition and sleep.

  • Magtein® is the only form of magnesium shown to effectively increase magnesium levels in the brain.
  • Promotes healthy sleep patterns and mood.
  • Supports cognitive function, including executive function, working memory, attention and episodic memory.

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Research-Supported Benefits:

Supports Cognitive Function. Magnesium threonate is essential for maintaining between-cell signaling and promoting the growth, maturation and survival of neurons and their networks. Magnesium threonate crosses the blood-brain barrier and boosts the production of brain-derived neurotrophic factor (BDNF), a protein that promotes the survival and growth of neurons. Clinical research shows that magnesium L-threonate in the form of Magtein® can significantly improve executive function, working memory, attention and episodic memory. This cognitive improvement was equivalent to a nine-year reduction in their overall brain age.1,2

Supports Healthy Mood. Magnesium threonate supports a healthy mood because it plays a role in neuronal signaling and BDNF production. Magnesium threonate is also involved with the function of some neurotransmitters, including GABA, serotonin and dopamine. Research shows that adults aged 50 to 70 who took Magtein® for 12 weeks had significant reductions in stress-related anxious symptoms and feelings of fear compared to the placebo group.3

Supports Sleep. Magnesium is known to support healthy sleep patterns, including increasing total sleep time, reducing sleep latency (the time it takes to fall asleep) and improving sleep efficiency.4


1. Li W, Yu J, Liu Y, et al. Elevation of brain magnesium prevents synaptic loss and reverses cognitive deficits in a mouse model. Mol Brain. 2014;7:65. Published 2014 Sep 13. doi:10.1186/s13041-014-0065-y

2. Liu G, Weinger JG, Lu ZL, Xue F, Sadeghpour S. Efficacy and Safety of MMFS-01, a Synapse Density Enhancer, for Treating Cognitive Impairment in Older Adults: A Randomized, Double-Blind, Placebo-Controlled Trial. J Alz Dis. 2016;49(4):971-990. doi:10.3233/JAD-150538 

3. Hewlings S and Kalman D. 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. 2022:07-14. 

4. Abbasi B, Kimiagar M, Sadeghniiat K, Shirazi MM, Hedayati M, Rashidkhani B. The effect of magnesium supplementation on primary insomnia in elderly: A double-blind placebo-controlled clinical trial. J Res Med Sci. 2012;17(12):1161-1169. 

  • Magtein® (Magnesium L-threonate) is a patented compound that effectively crosses the blood-brain barrier.
  • Clinical research shows it provides significant improvement in executive function, working memory, attention and episodic memory. The cognitive improvement is equivalent to a nine-year reduction in "brain age".2
  • Benefits:2
    • Effectively crosses the blood-brain barrier 
    • Delivers magnesium to the brain most effectively 
    • Increases brain synaptic density 
    • Reverses the hippocampus age-related shrinking of the brain, which controls short and long-term memory 
    • Restores the prefrontal cortex synaptic density of the brain, which controls complex cognitive behavior and emotional response; executive reasoning; planning; decision making 
    • Increases synaptic plasticity and density in both hippocampus and prefrontal cortex regions of the brain.
Supplement Facts
Serving Size: 3 Capsules
Servings Per Container: 30
Amount Per Serving %DV
Magnesium (from 2000 mg Magtein® magnesium L-threonate) 144 mg 34%*
* Percent Daily Values are based on a 2,000 calorie diet.

Magtein® is protected under a family of US patents, pending patents, and is protected worldwide. Magtein® is a trademark of Magceutics®, Inc. and is distributed exclusively by AIDP, Inc
  • SUGGESTED DAILY USE: Take 3 capsules daily, may be taken in divided doses, or as recommended by your healthcare professional.
  • NOTE: Keep bottle tightly closed. Store in a cool, dry place, away from direct sunlight. Do not use if tamper-evident packaging is broken. KEEP OUT OF REACH OF CHILDREN.
  • CAUTION: Not intended for use by pregnant or nursing women. Not formulated for use in children. If you have a medical condition or are taking medications, consult with your healthcare professional before using this product.
  • OTHER INGREDIENTS: Vegetable capsule, rice our.
  • DOES NOT CONTAIN: Dairy, egg, soy, wheat, gluten, corn, sh, shellsh, tree nuts, peanuts.

Bioavailable Form. Magtein® is a patented form of magnesium L-threonate that is the most bioavailable magnesium because it crosses the blood-brain barrier. For this reason, Brain-Mag Pro is the best magnesium supplement for supporting cognition and mood.

High Dose. Other supplements on the market contain less than 100 mg of magnesium from less than 1300 mg of magnesium L-threonate. ProHealth Longevity’s Brain-Mag Pro contains 144 mg of magnesium from 2000 mg of magnesium L-threonate.

Free of Unwanted Ingredients. Brain-Mag Pro doesn’t contain dairy, eggs, peanuts, preservatives or chemicals. Brain-Mag Pro does not contain animal-sourced raw materials and is suitable for vegetarians and vegans. It is Kosher Certified. It is free of GMO and BSE/TSE risk. It is non-irradiated, non-ETO treated.

Quality-Manufacturing Practices. All of our products are manufactured in an FDA-registered, GMP-certified facility.

Third-Party Tested in the USA. Every batch is third-party tested in US laboratories to ensure the highest quality, purity and potency. Certificates of Analysis are available.

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Customer Reviews

Based on 47 reviews
Yan Z.

After taking Magnesium L-Threonate for a while, I feel that my cognition, memory, and thinking ability have improved. I will continue to take it.

James A.
There is a difference in supplements you tske

I’m really not a review type of person and not much of a supplement user, however I have been giving them a try and the difference is amazing with this brand, they work.

Ellen R.
Great product

Brain-Mag is the best magnesium L-Threonate I have tried. It has helped with clarity and sleep. I wouldn't order from anyone else.

Stephanie C.
Fell Goof INC

I can feel the difference.! I love the brain mag. These products are amazing quality and i feel great. I am sleeping better. Thank you.

Donna D.
great product

great product from all the possible choices. works well!

Ligia T.
Best supplement

High quality supplement it has help with sleep .

Holly J.
Good supplement

I take this along with another magnesium / calcium combination pill malate and citrate. It’s part of my longevity program.

Jennifer I.

Superb products

Sherri R.
Brain Mag

Have noticed an improvement in my clarity of thinking and sleep.

Myrna B.
Brain MagPro

Just been taking this for the 2nd month. I take the dosages very dedicated, helps with sleeping,

Frequently asked questions

Take 3 capsules per day or as directed by a health care professional. May be taken in divided doses.
Keep bottle tightly closed. Stable at ambient room temperature for up to two years.
Magnesium is considered a safe supplement, but high doses of magnesium from supplements can cause nausea, abdominal cramping and diarrhea.