PROBLEM TO BE SOLVED: To provide a method for producing an oil-in-water type nanoemulsion which is based on an emulsifier ternary system that is stable under different temperature and physical stress conditions, besides being compatible with a great variety of cosmetics ingredients and to obtain a composition for cosmetic and dermatological use containing the same.SOLUTION: The production method thereof comprises cold emulsification and homogenization steps, which make possible the incorporation of active oily ingredients sensitive to higher temperatures. The obtainment of the nanoemulsion with the properties comprises the use of lecithin, of a fatty acid ester and sorbitol condensed with ethylene oxide and an ester of fatty acid and sugar, in specific proportions, as emulsifiers.COPYRIGHT: (C)2008,JPO&INPIT【課題】異なった温度および物理的ストレス状態下で安定で、多種多様の化粧成分に適合する乳化型三成分系に基づく水中油型ナノエマルジョンの製造方法ならびにそれを含む化粧用および皮膚用組成物。【解決手段】高い温度に対して敏感な活性のある油性成分の取り込みを可能にする低温乳化および均一化工程であり、乳化剤として、レシチン、脂肪酸エステルおよびエチレンオキシドと縮合したソルビトールならびに脂肪酸および糖のエステルを特定の割合で使用する。【選択図】なし