PhosphatidylserinePhosphatidylserine (PS) is essential for healthy brain cell membranes and to maintain an environment required for optimal brain function.* Phosphatidylserine improves cell to cell communication in the brain, and thus cognitive function, at least in part by increasing cell membrane fluidity.* Other mechanisms of action include enhancing cell metabolism (such as glucose utilization) and neurotransmitter formation.* Phosphatidylserine also appears to