China's national laws and regulations have a clear definition of natural vitamin E:

China Pharmacopoeia stipulates that the content of natural vitamin E :D-α- tocopherol should not be less than 90%, and the United States Pharmacopoeia stipulates that it should not be less than 96%.

Vitamin E in Yangshengtang contains 97.5 mg of d-α- tocopherol (referring to the content of 250mg per capsule), but the back does not contain 39 g of d-α- tocopherol per 100 g obviously, and the actual purity is only 39%, so it should be unnatural VE.