Magnesium L-Threonate Powder


$59.95 $49.95

(3 customer reviews)

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Magnesium is an essential cofactor for more than 300 enzymes involved in biosynthesis processes and energy metabolism. It plays an important role in many of the brain’s functions.

Magnesium has been implicated in many of the brain functions. However, most magnesium compounds have low brain bioavailability and severe gastrointestinal side effects. Magnesium L Theronate is the only magnesium compound that has been shown to effectively raise the brain’s magnesium levels, which leads to enhanced learning abilities, improved working memory, and better short- and long-term memory in both young and aged animals.



Various studies have shown that Magnesium plays an important role in regulating memory formation, mood and protecting the brain from various stressors. However, various other studies have also shown that Magnesium supplements, especially forms such as Magnesium Oxide, have a fairly hard time elevating brain levels of Magnesium to statistically significant levels, which is why Magnesium L-Threonate is currently the only form of Magnesium that will produce significant effects on overall cognition.

When Magnesium reaches the brain, it mainly interacts with the NMDA receptors, which play a key role in the formation of memories. The NMDA receptor contains a specialized site within the receptor to which Magnesium can bind. When Magnesium binds to this site, it blocks the receptor, which prevents the receptor from activating. This protects the brain from the negative effects of overactivation of the NMDA receptor. NMDA receptor activation, however, is also vital for the formation of memories and this is where Magnesium has a very unique effect. It increases the amount of NMDA receptors in the brain, whilst blocking background activation, which means that when the NMDA receptors get activated during memory formation, there will be a much stronger NMDA receptor response, leading to a deeper and faster encoding of memories.


As a dietary supplement, take 1000mg of Magnesium L-Threonate twice daily – once in the morning and once in the evening 2 hours before sleep. 1000mg at night only is recommended in the first week of taking Magnesium L-Threonate.


Nootropic Source offers a 60-gram option of Magnesium L-Threonate powder. Nootropics Source’s Magnesium L-Threonate has been lab-tested and verified for both product purity and identity.

Please note:


Not suitable for children or pregnant women. Should only be used under medical or dietic supervision. This product is not a sole source of nutrition and should be consumed in conjunction with a nutritious diet and appropriate physical training or exercise program.


Keep out of reach of children. Do not take this supplement or any other supplements if you are under 18, pregnant or nursing a baby or if you have any known or suspected medical conditions and/ or taking prescription drug(s) or other medication(s). Always consult with a qualified medical professional before taking any new dietary supplements. This product makes no claims to prevent, diagnose, cure or alleviate any disease, ailment, defect or injury. All Information is pulled from research studies and is for educational purposes only.

Weight 0.06 kg
Dimensions 17 × 2 × 14 cm

3 reviews for Magnesium L-Threonate Powder

  1. Aaron

    One of the ONLY proven ways to get magnesium to cross the blood-brain barrier. SO hard to find in Australia, thx nootropic source 🙂

  2. Mark

    I really feel this product compared to other magnesium supplements I’ve tried.

  3. Allen

    Nice Product 🙂

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