Anti-lipid peroxidization in vivo has been observed by VE per os. The results have proved that contents of serum VE and RBC VE obviously were increased and that contents of serum LPO and RBC LPO obviously were decreased in normal adults and patients with acute hepatitis taking VE (200 mg/d) after 10 days. Specially, there was significant change in the patients with acute hepatitis group (53 cases). Increased levels of VE in serum and RBC were 137% and 97% respectively. Decreased levels of LPO in serum and RBC were 48% and 20% respectively. The study showed that VE has very strong anti-lipid peroxidization.