PROBLEM TO BE SOLVED: To provide an external preparation for skin which contains metallic oxide particles and which is excellent in moisture retention and water-resistance.SOLUTION: The invention provides an O/W emulsion type external preparation for skin containing a closed endoplasmic reticulum formed from an amphiphilic agent which has an oil phase as an inner phase and an aqueous phase as an outer phase, and which forms a closed endoplasmic reticulum spontaneously, or polycondensation polymer particles having a hydroxyl group and further containing metallic oxide particles wherein the viscosity at the temperature of 25°C is 3,000 mPa s or more or further, the O/W emulsion type external preparation for skin containing the one or more kinds selected from a metallic oxide particle, a moisturizing agent and a pseudo-ceramide, or phospholipid.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】金属酸化物粒子を含みかつ保湿性および耐水性に優れる皮膚外用剤を提供すること。【解決手段】内相は油相であり、外相は水相であり、自発的に閉鎖小胞体を形成する両親媒性物質により形成された閉鎖小胞体又は水酸基を有する重縮合ポリマーの粒子を含むO/Wエマルション型である皮膚外用剤は、さらに、金属酸化物粒子を含み、温度25℃における粘度が3,000mPa・s以上である、又は、さらに、金属酸化物粒子と、保湿剤、擬似セラミド、またはリン脂質の中から選ばれる1種または2種以上とを含む。【選択図】なし
