Lecithin is a mixture, a group of yellow-brown greasy substances that exist in plant tissues and egg yolk. The main ingredients include phosphoric acid, choline, fatty acids, glycerol, glycolipids, and triglycerides Ester. With the help of mechanical or chemical methods ( extraction with hexane), lecithin can be seperated from egg yolk or soybeans. Lecithin helps to maintain liver health and lower cholesterol. Guangzhou Changshengkang Biotechnology Co.,Ltd can customize this product for you. Don't hesitate to contact us.