Vitamin E

For natural d-alpha-tocopherol, 1 IU is 0.67 mg, so 400 IU is 268 mg and 1,000 IU is 670 mg. The factor is different for the synthetic dl-alpha form, so the conversion depends on the form named on the label. The EU nutrition table gives vitamin E in mg with % NRV, where 100 % NRV is 12 mg.

Vitamin E occurs as tocopherols and tocotrienols, and the tocopherols are alpha, beta, gamma and delta. The prefix d- marks the natural form of alpha-tocopherol and dl- the synthetic form. Mixed tocopherols means that more than one of the four is present. The ingredient list shows which of them a product uses.

Some products are liquids, an oil and a cream in 30 ml or 118 ml sizes. They are not softgels, so the label and product page state what each one contains and how it is meant to be used. Check that before comparing it with a softgel, and compare softgels by the vitamin E per softgel.