4 Best Magnesium L-Threonate supplements
- 2000 mg Magtein® per daily serving (3 capsules)
- € 1.66 per serving
- 2000 mg Magtein® per daily serving (1 scoop)
- € 1.71 per serving
- 2000 mg Magtein® per daily serving (3 capsules)
- € 1.77 per serving
- 2000 mg Magtein® per daily serving (3 capsules)
- € 1.80 per serving
Other Magnesium forms
Buy Magnesium L-Threonate (Magtein®) here. The best magnesium form for the brain (learning, concentration, and memory). Or read more about it below.

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Magtein®: Magnesium Threonate for the Brain
If you want to use magnesium to support learning, concentration, and memory, magnesium L-threonate is the best form.
Scientific research shows that magnesium L-threonate is even more effective than other good magnesium forms, such as magnesium glycinate and magnesium citrate. In addition, customer experiences with magnesium L-threonate are very positive.

Blood-Brain Barrier
This is because magnesium L-threonate passes the blood-brain barrier most easily.
Before magnesium L-threonate became readily available, magnesium bisglycinate was always recommended for the brain. The reason for this is that glycine (glycinate) plays an important role in the brain.
However, it is not clear whether magnesium glycinate passes the blood-brain barrier effectively. For magnesium L-threonate, this has been well-established.

Function
While the function of magnesium L-threonate is essentially the same as other magnesium forms, this form is much more effective for brain function. This is because the magnesium component of magnesium L-threonate is responsible for the effect. However, the threonine component ensures significantly better absorption, making magnesium threonate highly effective.
Side Effects
There are no known side effects from using magnesium L-threonate. Because it is so well-absorbed, it does not cause overly soft stools even at high doses.
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Written by: Wouter Olthof
Reviewed by: Liesbeth Thoen
Updated on: April 1, 2024