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Brain and Nervous System Health100 mg Per SoftgelDietary SupplementSupports Healthy Mental FunctionHelps Maintain Cell Signaling and Integrity in the BrainHelps Maintain Healthy Memory and Cognitive FunctionScience-Backed Quality Since 1969Sharp-PS®For mental nourishment and brain health try Swanson Phosphatidylserine! An important member of the phospholipid nutrient family phosphatidylserine (PS) is essential to the structure and function of cellular membranes. PS is found in particularly high amounts in cell membranes and brain tissue which is why researchers have investigated its benefits for mental nourishment.