Doctor’s Best – Brain Magnesium with Magtein 90vc

Contains Magtein magnesium-l-threonate, which has been found to contribute to cognitive and brain health. Magtein is a patented combination of magnesium and a vitamin C compound called threonic acid. Magtein is the only form of magnesium proven by clinical trials to effectively cross the blood-brain barrier and increase magnesium levels in the brain.