Phosphatidylserine (PS) is a naturally-occurring phospholipid and is a component of cell membranes.* Phosphatidylserine is the most abundant phospholipid present in the brain and supports healthy cognitive function.* Jarrow Formulas^® Cogni-PS^® is a concentrated form of phosphatidylserine from sunflower lecithin that offers superior stability, does not contain soy and is not derived from genetically modified organisms (non-GMO).