Comparing E307 - Alpha-tocopherol vs E307B - concentrated tocopherol

What is d alpha tocopherol?

It’s the natural stereoisomer of vitamin E (RRR‑α‑tocopherol, E307), typically derived from vegetable oils and used as an antioxidant and nutrient in foods.

Is d alpha tocopherol natural?

Yes—“d‑” indicates the naturally occurring RRR‑α‑tocopherol, usually sourced from plant oils; the synthetic form is labeled “dl‑” (all‑rac‑α‑tocopherol).

What is d-alpha tocopherol?

It’s the natural form of vitamin E (RRR‑α‑tocopherol, E307), the most biologically active isomer and commonly used as an antioxidant in foods.

Is d alpha tocopherol synthetic?

No; the “d‑” form is natural, while the synthetic version is the racemic “dl‑” (all‑rac) α‑tocopherol.

What is d alpha tocopherol acetate?

It’s the acetate ester of d‑α‑tocopherol used for improved stability in foods and supplements; the body converts it to active α‑tocopherol.