PROBLEM TO BE SOLVED: To provide an oil-in-water emulsion cosmetic which has emulsion stability over a long period, has satisfactory sense of use, and has excellent maintainability of a moisturizing effect.SOLUTION: The oil-in-water emulsion cosmetic includes the following components (a), (b), (c), (d), and in which the content of the component (a) to the whole mass is 0.01 to 30 mass%, the total content of the component (b) and the component (c) is 1 to 60 mass%, the content of the component (d) is 1 to 30 mass%, and also, the content of the component (b) to 100 pts.mass of the total content of the component (b) and the component (c) is ≥10 pts.mass: (a) a polyalkylene glycol derivative represented by general formula (I), Z-{O-(EO)a(AO)k-H}m (I) (wherein, Z denotes the residue obtained by removing hydroxyl groups from water-soluble polyhydric alcohol having 3 to 6 pieces of hydroxyl groups EO denotes an oxyethylene group and AO denotes a 4 to 8C oxyalkylene group) (b) one or more kinds of polar oils selected from an ester oil and triglyceride (c) a hydrocarbon oil and (d) 2 to 6C divalent or trivalent alcohol.COPYRIGHT: (C)2013,JPO&INPIT【課題】長期の乳化安定性を有し、使用感が良好で保湿効果の持続性に優れる水中油型乳化化粧料を提供する。【解決手段】下記の成分(ア)、(イ)、(ウ)、(エ)を含有し、全質量に対する成分(ア)の含有量が0.01~30質量%、成分(イ)及び成分(ウ)の合計量が1~60質量%、成分(エ)の含有量が1~30質量%、かつ、成分(イ)と成分(ウ)の合計量100質量部に対する成分(イ)の量が10質量部以上である、水中油型乳化化粧料。(ア)一般式(I)で表されるポリアルキレングリコール誘導体。Z-{O-(EO)a(AO)k-H}m (I)(式中、Zは、水酸基を3~6個有する水溶性多価アルコールから水酸基を除いた残基、EOはオキシエチレン基、AOは炭素数4~8のオキシアルキレン基)(イ)エステル油、トリグリセリドから選ばれる1種以上の極性油(ウ)炭化水素油(エ)炭素数2~6の2価又は3価のアルコール【選択図】なし
