Yamamoto Nutrition PhosphaPRO is a dietary supplement that provides 100mg of Phosphatidylserine per daily dose, a natural phospholipid component of cell membranes. The Phosphatidylserine is a phospholipid contained in the structure of the cell membrane. Like other phospholipids Phosphatidylserine can be synthesised by our bodies. Phosphatidylserine is much more abundant in brain than in any other part of the body, especially in the cell membranes of neurons. At this level the Phosphatidylserine maintains the optimal cell permeability necessary for the entry of nutrients and expulsion of waste materials. It allows more effective communication between neurons by facilitating the conduction of nerve impulses and the release of targeted quantities of neurotransmitters. PhosphaPRO is a dietary supplement based on naturally derived Phosphatidylserine (from soy lecithin). It contains 100 mg of phosphatidylserine per capsule.