Nourish your brain with Phosphatidyl Serine with SerinAid from Doctor’s Best. This formula delivers PS, an essential brain nutrient, in a matrix of other phospholipids and cofactors. PS and other phospholipids are structural components of brain neurons that can enhance cell-to-cell communication. Studies have shown the ability of supplemental PS to support healthy cognitive function. Phosphatidyl Serine with SerinAid features PS and other essential nutritional cofactors.