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J. Roed-Petersen and N. Hjorth, “Patch Test Sensitization from DL-alpha-tocopherol (Vitamin E),” Contact Dermatitis, Vol. 1, No. 6, 1975, p. 391.

has been cited by the following article:

• TITLE: Allergic Contact Dermatitis Syndrome Due to Tocopherol Acetate, in Addition to Glycyrrhetinic Acid

  AUTHORS: Kentaro Ohko, Akiko Ito, Masaaki Ito

  KEYWORDS: Allergic Contact Dermatitis; Tocopheryl Acetate; Vitamin E; Enoxolone; 18-Glycyrrhetinic Acid

  JOURNAL NAME: Journal of Cosmetics, Dermatological Sciences and Applications, Vol.2 No.1, March 28, 2012

  ABSTRACT: Natural vitamin E is suggested to have an antioxidant function. However, the synthetic form of vitamin E, DL-tocopherol, which has been widely used in topical ointments, may cause allergic contact dermatitis. Here, we report a case of allergic contact dermatitis with erythema multiforme-like eruption caused by a topical ointment. Patch testing indicated a positive allergic reaction to an anti-inflammatory ointment the patient had been using and its ingredient, DL-alpha-tocopheryl acetate (vitamin E). In addition, a positive reaction to glycyrrhetinic acid was observed. Both vitamin E and glycyrrhetinic acid are useful ingredients of topical applications. However, the possibility that both can cause contact dermatitis, albeit rarely, should be considered.