[Topic] be able to produce easily, after the producing new organopolysiloxane and offer its manufacturing method thing and its application where 2 phase separation and sinkage etc of the unreacted raw materials almost did not happen, in stability were superior chemically in practicality, possess the hydrophilic radical.The cosmetics which in addition contain that [settlement means] new covariant organopolysiloxane and its manufacturing method which possess the basis and the hydrophilic radical which possess polysiloxane dendron structure, the surface active agent which consists of the said covariant organopolysiloxane, in regard to the powder body treatment agent.［課題］ 容易に製造でき、製造後に２相分離や未反応原料の沈降などがほとんど起こらず、化学的に安定で実用性に優れた、親水性基を有する新規オルガノポリシロキサンおよびその製法を提供することおよびその用途。［解決手段］ シロキサンデンドロン構造を有する基および親水性基を有する新規な共変性オルガノポリシロキサン及びその製法、該共変性オルガノポリシロキサンからなる界面活性剤、粉体処理剤に関し、またそれを含有する化粧料。
