Supports Memory and Cognition. 500 MG. PhosphatidylSerine is a nutrient essential to the brain's structure and function. As a nerve cell building block PhosphatidylSerine works in concert with omega-3 and other fatty acids to support healthy cognitive function including memory learning comprehension stress response and word recall. Sharp-PS™ softgels use a unique encapsulation method that helps ensure long shelf life and optimum potency. Sharp-PS™ is a trademark of Enzymotec Ltd.