Phosphatidylserine, or PS for short, is extracted from natural soybean oil residues. It is an active substance of cell membrane, especially in brain cells. Its function is mainly to improve the function of nerve cells, regulate the transmission of nerve impulses, and enhance the memory function of the brain. Serine phosphatide, diacylglycerol phosphate serine, is a kind of ubiquitous phospholipids, usually located in the inner layer of cell membrane. Phosphoglycerides in phosphoesters are components of cell membrane, which are related to a series of membrane functions. [Name] Phosphatidylserine Phosphatidylserine, PS [Alias] serine phospholipids, 3-Sn-Phosphatidyl-L-serine, BC-PS, Bros, Memorix, Neo-Bros, Senefor, Sicotrat CAS 51446-62-9 [Plant Source] Phosphatidylcholine (PC) is extracted, separated and purified from natural soybean oil residue. Phosphatidylcholine is synthesized under the catalysis of PS-specific enzymes (main enzymatic phospholipase D). [Product Specification] Phosphatidylserine 50% (HPLC)