| abstract |
A co-modified organopolysiloxane having a viscosity at 25°C of not more than 1,500 mPa⋅s, a group that has a siloxane dendron structure, a hydrophilic group, and expressed by the following general formula (1): R 1 n a R 2 n b L 1 n c Q d SiO (4-a-b-c-d)/2 (1).The invention also relates to a powder treatment agent, a powder in oil dispersion, an external use preparation (particularly a cosmetic composition) composition comprising the co-modified organopolysiloxane. In said general formula (1), R 1 is a monovalent hydrocarbon group or a hydrogen atom; R 2 is a monovalent hydrocarbon group having from 6 to 30 carbons; L 1 is a silylalkyl group having a siloxane dendron structure; and Q is a hydrophilic segment. |