All-rac-α-tocopheryl acetate, a synthetic form of vitamin E, is a fat-soluble antioxidant commonly used in dietary supplements, fortified foods, and pharmaceutical or cosmetic formulations to prevent oxidative damage and vitamin E deficiency. Unlike natural d-α-tocopherol, it is a racemic mixture of eight stereoisomers (hence “all-rac”), providing a more stable and cost-effective source of vitamin E that resists oxidation better than the free alcohol form. Developed in the mid-20th century to allow large-scale production and enhance shelf life, all-rac-α-tocopheryl acetate has been widely adopted in medicine, nutrition, and skincare for its antioxidant properties, contributing to cardiovascular, neurological, and dermatological health.
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