PhosphatidylSerine Matrix 500mg 60 gels by Source NaturalsPhosphatidylSerine Matrix 500mg 60 gels Dietary Supplement 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