E (Vitamin E is a fat-soluble vitamin, also known as tocopherol, and is one of the most important antioxidants. Soluble in fat, ethanol and other organic solvents, insoluble in water, stable to heat and acid, unstable to alkali, sensitive to oxygen and insensitive to heat, but the activity of vitamin E decreased obviously during frying. Tocopherol can promote the secretion of sex hormones and increase the vitality and quantity of male sperm; Can increase female estrogen concentration, improve fertility and prevent miscarriage. It can also be used for preventing and treating male infertility, burn, frostbite, capillary hemorrhage, climacteric syndrome, and beautifying. It is found that vitamin E can inhibit the lipid peroxidation of the lens, dilate peripheral blood vessels and improve blood circulation.