Jarrow Formulas, Los Angeles, CA, has launched liquid Alpha GPC. Each serving contains 500 mg of the active ingredient alpha-glycerylphosphorylcholine (Alpha GPC), and is suitable for vegetarians/vegans. Derived from lecithin, Alpha GPC is a phospholipid metabolite found concentrated in the neuronal membrane. According to the company, it supports brain function and learning processes by directly supporting the synthesis and secretion of acetylcholine, an important neurotransmitter. Alpha GPC protects neurons and improves signal transmission by serving as a precursor to membrane phospholipids.