What is alpha-tocopheryl acetate and how does it differ from other vitamin E forms? — Vitamin E capsules 250 mg N20 - Real Caps

Alpha-tocopheryl acetate is the esterified version of alpha-tocopherol, the most biologically active form of vitamin E in humans. The acetate group makes the molecule more stable against oxidation during storage, which is why it is widely used in supplements. Once ingested, intestinal esterases remove the acetate, releasing free alpha-tocopherol for absorption. This conversion is efficient and well understood. Other forms you may encounter include dl-alpha-tocopheryl acetate (synthetic, a racemic mixture of eight stereoisomers) and d-alpha-tocopheryl acetate (natural-source, single RRR stereoisomer). According to the label, this product contains dl-alpha-tocopheryl acetate (the synthetic form). Regardless of source, the acetate ester delivers vitamin E activity once metabolized. The 100 mg per softgel refers to the weight of the acetate ester, which provides 65 mg of vitamin E (100 IU).