Naka Magnesium Bisglycinate + BioActive B6 - Bonus Size - Providing 200 mg of elemental Magnesium from Magnesium Bisglycinate and Magnesium Oxide with faster, more efficient absorption and more usable magnesium for your body’s needs. Magnesium is used in many body functions, including proper muscle function and the maintenance of bones and teeth. BioActive B6 is an active form of Vitamin B6 - Pyridoxal 5'-Phosphate and is an essential daily nutrient needed for more than 140 physiological processes, including: the conversion of carbohydrates, fats, and proteins into energy; the production of neurotransmitters that affect cognition and emotional well-being; and the healthy formation of red blood cells and tissue.