Vitamin e, if it is a brand. At present, only Laiyive is far ahead in technology and content in the world. You can try it yourself. You just have to try. Don't buy synthetic ones. Most health care products VE are ultra-low purity, so you must be optimistic. China Pharmacopoeia stipulates that the content of pure natural vitamin E :D-α- tocopherol shall not be less than 90%, and the United States Pharmacopoeia stipulates that it shall not be less than 96%. Limited by technical ability, the purity of natural VE of health food symbols on the market is less than 50%. The purity of Lion brand natural vitamin E is more than 96%. Is to meet American standards. Vitamin E in Yangshengtang contains 97.5 mg of d-α- tocopherol (referring to the content of 250mg per capsule), and the purity of tocopherol is only 39%. Vitamin E capsules not only contain effective component d-α- tocopherol, but also contain other auxiliary materials, such as edible vegetable oil used in general vitamin E products. Vegetable oils used in Yangshengtang include safflower seed oil and perilla oil. If the purity is low, it means that the content of effective component d-α- tocopherol is very small. In fact, it seems that I only sold you a lot of edible vegetable oil, or, to put it bluntly, I sold you a dragon fish oil.