NOW FOODS MAGTEIN MAGNESIO L-TREONATO 90 CÁPSULAS + ENVÍO GRATUITO EL MISMO DÍA
However, most forms of Mg are not easily absorbed into the nervous system. Magtein is a patented form of Mg that readily crosses the blood-brain barrier for utilization in the brain. Magnesium (from Magtein Magnesium L-Threonate) 144 mg 34%.