The present invention provides a cosmetic containing an organosiloxane graft polyvinyl alcohol polymer having a structural unit shown by the general formula (1) and a structural unit shown by the general formula (3). The organosiloxane graft polyvinyl alcohol polymer has a number average molecular weight (Mn) of 5,000 to 500,000 as measured by GPC. There can be provided a cosmetic which has favorable feeling on use and oil resistance, and which is excellent in cosmetic durability improvement. where M 1 and M 2 each represent a hydrogen atom, an acetyl group, or a siloxane group shown by the general formula (2), provided that at least one of M 1 and M 2 is a siloxane group shown by the general formula (2)； and A represents a single bond or a linking group, where M 3 represents a hydrogen atom, an acetyl group, or a siloxane group shown by the formula (2).
