3-sn-phosphatidyl choline is the active ingredient of Lipostabil. It is a lecithin with two unsaturated fatty acid chains. This relatively old German drug is made from soy. The typical composition of soy phosphatidylcholine looks something like this: 13% palmitic acid 4% stearic acid 10% oleic acid 66% linoleic acid 6% linolenic acid. Phosphatidylcholine is widely distributed in nature. It is found in plant and animal cell membranes. Commercially, it is used in medicines and cosmetics. Phosphatidylcholine can namely have a healing effect on fat embolisms, lipometabolic disorders and liver diseases and has positive effects on the skin besides.