α-Tocopherol is a type of vitamin E. It has E number "E307". Vitamin E exists in eight different forms, four tocopherols and four tocotrienols.

What is d-alpha-tocopherol made from?

D-alpha-tocopherol can be obtained from non-GMO sources, especially soybean and sunflower oils. However, mixed tocopherols, containing the other three tocopherols (beta-, gamma-, and delta-forms), are typically only commercially extracted from soybeans and are not present in significant amounts in sunflower oil.

Is alpha-tocopherol the same as vitamin E?

Alpha-tocopherol is the most biologically active form of vitamin E, and its natural form consists of one isomer. In contrast, synthetic alpha-tocopherol contains eight different isomers, of which only one (about 12 percent of the synthetic molecule) is identical to natural vitamin E.