PROBLEM TO BE SOLVED: To provide cosmetics having both water repellency and oil repellency, and excellent water resistance and sebum resistance.SOLUTION: The cosmetics comprise a polymer obtained by copolymerization of a fluorine atom-containing monomer represented by a formula (I) and a betaine monomer represented by a formula (II), and alkyl (meth) acrylate (Ris H or methyl； Ris H or F； m is 0 or 1-4； n is 1-12) (Ris H or methyl, Rand Rare H or alkyl, p and q are 1-4).SELECTED DRAWING: None【課題】撥水性および撥油性を併せ持ち、耐水性および耐皮脂性に優れた化粧料の提供。【解決手段】式(I)で表わすフッ素原子含有モノマーと式(II)で表わすベタインモノマーとアルキル（メタ）アクリレートと、を共重合させたポリマーを含有する化粧料。（Ｒ1はＨ又はメチル；Ｒ2はＨ又はＦ；ｍは０又は１～４；ｎは１～１２）（Ｒ3はＨ又はメチル、Ｒ4およびＲ5は、Ｈ又はアルキル、ｐ及びｑは１～４）【選択図】なし
