Several studies indicate that synaptic connections in the brain hippocampus, a critical region for learning and memory, decline during the normal process of aging. Neuro Complex, which uses the unique, patented, chelated mineral Magtein®, contains magnesium which is chelated to threonic acid (magnesium L-threonate). It is superior to other forms of magnesium at getting through the blood brain barrier because it is able to transport magnesium ions across lipid membranes, including those of brain cells.*