PROBLEM TO BE SOLVED: To provide a makeup base cosmetic which provides an excellent impression from use and a storage stability as an oil-in-water type makeup base cosmetic, which has high water resistance when the cosmetic is applied to a skin, and which is also excellent in washing out performance upon makeup-removing, and a makeup method to use the makeup base cosmetic in which makeup-removing is easily performed.SOLUTION: An emulsion is used as a makeup base cosmetic, in which a (A) salt of liquid higher fatty acid is contained at a rate of 0.5-12 mass%, a (B) oil content is contained at a rate of 3-40 mass%, any hydrophilic surfactant other than the (A) salt of liquid higher fatty acid is not substantially contained, and pH is 7.1-9.5. The cosmetic can be efficiently prepared by means of a D phase emulsification method in which a D phase containing the (A) component, polyhydric alcohol, and water is formed, an oil phase containing the (B) component is thereafter gradually added to obtain a gelled emulsion (O/D phase), and dilution is optionally performed with water to obtain an oil-in-water type emulsion. When the makeup base cosmetic is used, makeup-removing can be easily performed with soap.COPYRIGHT: (C)2015,JPO&INPIT【課題】水中油型下地化粧料としての優れた使用感と保存安定性を有し、肌へ塗布したときに耐水性が高く、メイク落としの際の洗い流し性にも優れた下地化粧料および該下地化粧料を用いるメイク落としが簡単な化粧法を提供する。【解決手段】(A)液状高級脂肪酸の塩を0.5~12質量%および(B)油分を3~40質量%の割合で含有し、(A)液状高級脂肪酸の塩以外の親水性界面活性剤を実質的に含有せず、且つpHが7.1~9.5の乳化物を下地化粧料として使用する。この化粧料は、(A)成分と多価アルコールおよび水を含むD相を形成した後、(B)成分を含む油相を徐々に加えてゲル状エマルション(O/D相)とし、必要に応じて水で薄めて水中油型乳化物とするD相乳化法により効率よく調製することができる。この下地化粧料を使用すると、セッケンにより容易にメイク落としができる。【選択図】なし
