Alpha GPC 300 Protects Brain Function Alpha GPC (L-alphaglycerylphosphorylcholine, also known as choline alfoscerate) is a phospholipid metabolite found concentrated in neuronal membranes. Made 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 contains 300 mg of elemental Alpha GPC. Directions Take 1 to 2 Alpha GPC capsules per day with a meal, or as directed by your qualified health consultant. Free Ground Shipping on Orders over $80 for Supplements! COUPON: Coupon THX2OFF50 for $2 off on orders over $50.