Apollo Magnesium L-Threonate is a capsule supplement formulated with magnesium L-threonate, L-theanine and apigenin to support cognitive function, mental clarity and sleep quality. Magnesium L-threonate is a form of magnesium studied for how well it reaches the brain, and each three-capsule serve provides 2000mg (144mg of elemental magnesium) alongside 100mg of L-theanine to help support a calm, focused state and 50mg of apigenin. Many people take their serve in the evening, one to two hours before bed. The vegetable capsules are vegan-friendly and made from tapioca.