包装 5, 25, 100 g in glass bottle Biochem/physiol Actions Tocopherols (TCP) (vitamin E) are a series (α, β, γ and δ) of chiral organic molecules that vary in their degree of methylation of the phenol moiety of the chromanol ring. Tocopherols are lipid soluble anti-oxidants that protect cell membranes from oxidative damage. α-Tocopherol is the form of tocopherol preferentially absorbed by homo sapiens. α-Tocopherol nicotinate is used along the α-Tocopherol acetate, α-Tocopherol succinate and other esterified forms as a vitamin E supplement with similar but differential activities.