Provided are: an oil composition for cosmetics which is readily miscible with a makeup stain and can rinse out freshly through washing with water without leaving oily feeling, regardless of whether the skin is wet or not, and excels in safety and temporal stability and a cleansing cosmetic containing the oil composition for cosmetics. The oil composition for cosmetics contains 1 to 30 percent by weight of a medium-chain polyglycerol monoalkyl ether 1 to 30 percent by weight of a long-chain polyglycerol monoalkyl ether and 40 to 98 percent by weight of at least one oily ingredient selected from the group consisting of silicone oils, ester oils, and triglycerols.
