Alpha GPC (L-alphaglycerophosphatidylcholine; also known as choline alfoscerate) is a phospholipid metabolite found concentrated in neuronal membranes. Derived from lecithin; Alpha GPC is extremely well absorbed and crosses the blood brain barrier.* In the brain; Alpha GPC supports brain function and learning processes by directly increasing the synthesis and secretion of acetylcholine.* Alpha GPC protects neurons and improves signal transmission by serving as a precursor to membrane phospholipids.* Each Jarrow FORMULAS Alpha GPC 300 vegetarian capsule provides 300 mg of Alpha GPC. Keep out of the reach of children.