PROBLEM TO BE SOLVED: To provide a cosmetic that has no stickiness and gives a refreshing feel in use while having excellent moisture retention and emollient effect by emulsifying and dispersing a large amount of oily component with a small amount of surfactant.SOLUTION: An emulsion composition contains the following (A)-(D): (A) biosurfactant, (B) oily component, (C) aqueous component, and (D) thickener, wherein the concentration of the (A) is 0.01 wt.%-5 wt.% and the concentration of the (B) is 2 wt.%-25 wt.%.SELECTED DRAWING: None【課題】少ない界面活性剤で多量の油性成分を乳化・分散させることで保湿やエモリエント効果に優れつつべたつきのないさっぱりとした使用感の化粧料を提供する。【解決手段】下記(A)~(D)を含有し、前記(A)の濃度が0.01重量%~5重量%、前記(B)の濃度が2重量%~25重量%であることを特徴とする乳化組成物。(A)バイオサーファクタント、(B)油性成分、(C)水性成分、(D)増粘剤【選択図】なし