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Doctor's Best, Best Brain Magnesium, 75 mg, 60 Veggie Caps

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In Stock
  • Expiration Date: Mar 2018
  • Shipping Weight: 0.24 lbs (0.11 kg)
  • Product Code: DRB-00283
  • UPC Code: 753950002838
  • Package Quantity: 60 Veggie Caps
  • Dimensions: 2 x 2 x 3.7 in, 0.2 lbs (0.09 kg)
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Product Overview


  • Science-Based Nutrition
  • Dietary Supplement
  • Magtein
  • Magnesium L-Threonate
  • Promotes Healthy Memory Function
  • Vegan
  • Non-GMO and Gluten Free

Best Brain Magnesium supplies magnesium l-threonate (Magtein), a unique magnesium compound for delivering magnesium to the brain. Magnesium is essential for the brain connections (synapses) that facilitate learning, memory, attention, and all other brain functions. The l-threonate salt extends the action of magnesium. In preclinical studies, Magtein performed better than other magnesium compounds for synapse support. Best Brain Magnesium is a breakthrough for brain health.

Unique delivery of magnesium into the brain

Vital for memory, learning, concentration

Promotes stability and adaptability of brain connections (synapses)

Suggested Use

Adult Use: Take 2 capsules daily with water and without food, preferably in divided doses. Higher intakes may be beneficial, as recommended by a nutritionally-informed physician.

Other Ingredients

Modified cellulose (vegetarian capsule), ascorbyl palmitate.


Store in a cool dry place.

Supplement Facts
Serving Size: 2 capsules
Serving Per Container: 30 servings
Amount per serving % Daily Value
Magnesium (from 2084 mg of Magtein magnesium l-threonate) 150 mg 38%
iHerb Customer Reviews

Best Magnesium Threonate

Posted by 4696604035518495957 on Dec 01, 2016

excellent customer service

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Good for morning, but maybe the effect wear off if you take it everyday

Posted by 5311742311727924689 on Oct 24, 2016

I feel as if this is a magnesium supplement to be taken in the morning. Also it feels as if you take daily, you won't feel the effects, so maybe best to take it every other day or every 2 days. Unlike other magnesium supplements that work at night to reduce stress and induce sleep. I would actually buy it again, but it's quite pricey!

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Posted by 4753704467495783020 on Oct 10, 2016

I tried this a while back but never really took more than 2 caps a day as I felt more would be expensive. After reading the top voted review here I decided to give it another try at a higher dosage, boy am I glad I did! at the moment I am taking 6 caps a day (3 times 2 caps). Worth every penny =)

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This product contains magnesium stearate.

Posted by Reviewer2462188 on Oct 03, 2016

Magnesium L-Threonate is an excellent supplement, and I generally like the brand "Doctor's Best" (and I love iHerb). But iHerb needs to update the "Product Overview - Other Ingredients" on this page because this product does contain magnesium stearate. Frustrating if one orders it specifically because it was supposed to be magnesium stearate-free. It looks like the only brand for magnesium L-threonate without magnesium stearate is Mercola's brand. (I find that Mercola is the most reliable brand, offering the purest products.)

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Posted by Vizion on Jul 14, 2016

Not sure if there is any effect or not. This form of Magnesium seems hyped. In the literature I have read, various other forms of Magnesium supplementation will raise the CSF levels as well. However, at least Doctor's Best are providing us with these rarer kind of substances. I just give this 4 stars since I do not notice or feel anything and I am a very sensitive person.

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