Phosphatidylserine (PS) is a particularly important phospholipid. Among the many phospholipids in the human body, PS has little or unique function, which can affect the transmission of chemical information in the brain and help brain cells to store and read data. With age, phosphatidylserine and other important brain chemicals will decrease, resulting in decreased memory, cognition, and the like. Phosphatidylserine can increase the number of brain spurs, the fluidity of brain cell membranes and promote the metabolism of glucose in brain cells, thus making brain cells more active.PS is also an effective antioxidant, especially in iron-catalyzed oxidation reactions. PS can smoothly cross the blood-brain barrier and enter the brain within a few minutes after being absorbed. It has been increasingly used in medicine and health care.