To provide a new TNF-α production inhibitor which contains a TNF-α production inhibitory substance as an active ingredient, a new estrogenic agent containing an estrogenic substance as an active ingredient and an external preparation for the skin wherein the TNF-α production inhibitor or the estrogenic agent is compounded.
The TNF-α production inhibitor or the estrogenic agent contains nobiletin, at least one citrus extract chosen from the group consisting of extracts from Citrus hassaku Hort., Citrus unshiu Marcov., grapefruit, Valencia orange, Citrus depressa Hayata, Citrus reticulata Blanco, lemon, marcott and Shiranui or a nobiletin purified product obtained by purifying the citrus extract as an active ingredient. The external preparation for the skin contains the TNF-α production inhibitor or the estrogenic agent.
ITO YOKO
OTO NOBUAKI
KISHIDA NAOKO
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Suzuki Keiyasu