d-α-醋酸生育酚的功效和作用是什么？

Tocopheryl acetate, also known as vitamin E acetate, is a common vitamin supplement with the molecular formula C31H52O3 (for 'α' form). It is the ester of acetic acid and tocopherol (vitamin E). It is often used in dermatological products such as skin creams. Tocopheryl acetate is not oxidized and can penetrate through the skin to the living cells, where about 5% is converted to free tocopherol and provides beneficial antioxidant effects.Tocopheryl acetate is used as an alternative to tocopherol itself because the phenolic hydroxyl group is blocked, providing a less acidic product with a longer shelf life. It is believed that the acetate is slowly hydrolyzed once it is absorbed into the skin, regenerating tocopherol and providing protection against the sun's ultraviolet rays.d-α-醋酸生育酚在具有以下功能的保健食品中使用过该原料（注：不代表该原料本身具有以下保健功能）,具有如下功能:
增强免疫力,辅助降血脂,祛黄褐斑,缓解体力疲劳,抗氧化,辅助改善记忆,改善皮肤水份,通便,缓解视疲劳,提高缺氧耐受力,对化学性肝损伤有辅助保护功能,增加骨密度,对辐射危害有辅助保护功能,辅助降血糖,改善营养性贫血,改善睡眠,减肥,祛痤疮,改善生长发育,辅助降血压,其中在源海素牌维生素E软胶囊,宝健牌多种维生素矿物质片,康富森牌多种维生素硒软胶囊,中就有使用过该原料.
说明：以上对于原料功效的说明仅来源于其在对应保健食品中的运用，不代表该原料本身具有以下保健功能。