Dietary Supplement Supports Concentration* Phosphatidyl serine is a key human brain phospholipid which is essential for normal neuron structure and function. PS, along with other essential fatty acids, may play a critical role in cognitive function, including maintaining concentration and memory.* Formulated for maximum stability. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.