Jarrow Formulas Alpha GPC (L-alpha glycerylphosphorylcholine) is a phospholipid metabolite found concentrated in neuronal membranes. Alpha GPC is well absorbed and crosses the blood brain barrier. As a substrate involved in the synthesis and secretion of acetylcholine, Alpha GPC supports brain function and learning processes. Alpha GPC supports neuronal health and promotes signal transmission by serving as a precursor to membrane phospholipids. Jarrow Formulas Alpha GPC helps improve brain function by giving the user improved signal transmissions in the brain. Recommended use: Take 1 capsule 1 to 2 times per day with a meal or as directed by your qualified health care consultant. Jarrow Formulas Alpha GPC facts: 1 capsule contains: Alpha GPC (L-alphaglycerophosphatidylcholine) 300 mg Other Ingredients: Calcium phosphate, capsule (hydroxypropylmethylcellulosecellulose, water), microcrystalline cellulose, magnesium stearate (vegetable source), silicon dioxide and stearic acid (vegetable source). . Contains SOY Suitable for vegetarians/vegans. No wheat, no gluten, no dairy, no egg, no fish/shellfish, no peanuts/tree nuts