PROBLEM TO BE SOLVED: To provide an emulsion cosmetic composition obtained by forming a microemulsion having high stability and fine particle diameter.SOLUTION: There is provided an emulsion cosmetic composition comprising the following components (A), (B) and (C). (A) A polymeric emulsifier which is a copolymer containing 1 mass% or more and 23 mass% or less of a constitutional unit (a) represented by the general formula (1), a constitutional unit (b) represented by the general formula (2) and a constitutional unit (c) represented by the general formula (3) and in which the mass ratio ((c)/(b)) between the content of the constitutional unit (b) and the content of the constitutional unit (c) is 0.30 or more and 4.0 or less, (B) one or two or more oily components selected from an ester oil, a silicone oil, an ether oil, a hydrocarbon oil and a higher alcohol, which are liquid at 25°C and have a molecular weight of 120 or more and (C) water.COPYRIGHT: (C)2015,JPO&INPIT【課題】安定性の高い微細な粒径を有するマイクロエマルジョンが形成されてなる乳化化粧料組成物に関する。【解決手段】次の成分(A)、(B)及び(C)を含有する乳化化粧料組成物。(A)一般式(1)で表される構成単位(a) 1質量%以上23質量%以下、一般式(2)で表される構成単位(b)、及び一般式(3)で表される構成単位(c)を含有し、構成単位(b)の含有量と構成単位(c)の含有量との質量比((c)/(b))が、0.30以上4.0以下の共重合体である高分子乳化剤、(B)25℃で液状であり、分子量が120以上であり、かつエステル油、シリコーン油、エーテル油、炭化水素油、及び高級アルコールから選ばれる1種又は2種以上である油性成分、及び(C)水【選択図】なし
