Science-Based NutritionDietary SupplementThink ClearlyVegan / Non-GMO / Gluten Free / Soy FreeHelps Support Healthy Memory and Cognitive Function.Doctor's Best Brain Magnesium contains Magnesium L-Threonate from Magtein, a unique magnesium compound that helps support the health of neurons and synaptic plasticity. Magtein helps support healthy levels of magnesium essential for brain connections (synapses) that facilitate learning, memory, concentration, and all other cognitive functions. Magtein performs better than other magnesium compounds for synapse support and is a breakthrough in brain health.Unique delivery of magnesium to the brainHelps support memory, learning and concentrationHelps support stability and adaptability of brain connections (synapses)