An oil composition contains 1 to 50 percent by weight of a glycerol monoether compound represented by following Formula (1):R1O—(C3H6O2)n1—H (1)wherein R1 represents an alkyl or alkenyl group which may be substituted, and “n1” denotes a number of repeating glycerol units ranging from 1 to 3 and 1 to 50 percent by weight of a polyglycerol monoether compound represented by following Formula (2):R2O—(C3H6O2)n2—H (2)wherein R2 represents an alkyl or alkenyl group which may be substituted, and “n2” denotes a number of repeating glycerol units ranging from 4 to 20. The oil composition is usable as a foamable cleansing agent that is mild to the skin, exhibits superior detergency for removing oily cosmetics, and is usable even when the skin is wet.
