PROBLEM TO BE SOLVED: To provide a composition for food addition, inhibiting contact dermatitis, and a pharmaceutical preparation, a food product, a beverage and an external skin preparation, inhibiting contact dermatitis through external application to the skin or oral ingestion.SOLUTION: A composition for food addition, inhibiting contact dermatitis is obtained by using as the active ingredient, a water soluble soybean isoflavone material by finding out that soybean isoflavone shows an excellent contact dermatitis inhibiting effect. A contact dermatitis inhibitor, and a contact dermatitis inhibiting food product and beverage are obtained by using a water soluble soybean isoflavone material as soybean isoflavone, and contain 60 wt.% or more of a malonyl isoflavone glucoside, based on the soybean isoflavone total amount. Furthermore, the contact dermatitis inhibitor contains 50-95 wt.% of a malonyl isoflavone glucoside and 5-50 wt.% of isoflavone excluding a malonyl isoflavone glucoside, based on the soybean isoflavone total amount.COPYRIGHT: (C)2015,JPO&INPIT【課題】接触性皮膚炎を抑制する食品添加用組成物、皮膚に外用したり経口摂取することで接触性皮膚炎を抑制する製剤、食品、飲料並びに皮膚外用剤を提供する。【解決手段】大豆イソフラボンが優れた接触性皮膚炎抑制効果を示すことを見出し、有効成分として水溶性大豆イソフラボン素材を用いる接触性皮膚炎を抑制させるための食品添加用組成物。大豆イソフラボンとして水溶性大豆イソフラボン素材が使用され、大豆イソフラボン総量に対して、マロニルイソフラボン配糖体を60重量%以上含む、接触性皮膚炎抑制剤、接触性皮膚炎抑制食品および飲料。更には、大豆イソフラボン総量に対して、マロニルイソフラボン配糖体を50~95重量%、マロニルイソフラボン配糖体以外のイソフラボンを5~50重量%含む接触性皮膚炎抑制剤。【選択図】なし
