Hey ,

Good question! Often you will see on Magnesium L-threonate supplements the next ingredient on the bottle:

Magtein™ magnesium-l-threonate

Magtein™ is a registered trademark of Magceutics. This means that the magnesium in different supplements comes from the same producer. Here the quality of the supplement is determined by the additives the supplement brand uses.

Pure Encapsulations has a product called CogniMag (click here to find the supplement in fullscript). It has magnesium l-threonate in combination with some other plant extracts. The capsule contains cellulose and ascorbyl palmitate – a fat-soluble version of vitamin C. 

When it comes to supplements and the best brands, the B Better library also has a handout full of tips. You can find it in the Discount & resource folder (Or just click here!).

Is there a special reason why you would like to use it?