Science-Based Nutrition Helps Support Memory and Cognitive Function With SerinAid Phosphatidylserine Dietary Supplement Vegan Gluten Free Doctor's Best Phosphatidylserine Plus DHA contains SerinAid Phosphatidylserine (PS) and vegan-sourced Docosahexaenoic Acid (DHA) to help support cognitive function. Together PS and DHA help facilitate the electric signals that are the basis of neuron communication, supporting memory, mood, concentration, and stress control. Both PS and DHA are vital components of the membranes of nerve cells and the brain. They help promote executive memory, learning and mental processing. Helps promote executive functions, including working and long term memory. Veggie softgels, made with a healthy gelatin-free alternative to suit your lifestyle.