PURPOSE: A composition for hair using a floating agent of hydroxyl-containing crystal particle is provided to stably disperse silicon oil of low viscosity and ensure soft hair. CONSTITUTION: A hair composition contains cationic polymer, anionic surfactant, silicon oil of low viscosity and floating agent of hydroxyl-containing crystal particle. The silicon oil of low viscosity is dimethicone or cyclomethicone. The floating agent of hydroxyl-containing crystal particle is 12-hydroxycystearate, 9,10-dihydroxystearate, tri-9,10-dihydroxystearin, tri-12-hydroxystearin or glyceryl tri-12-hydroxystearate. The floating agent of hydroxyl-containing crystal particle is contains 0.1-10 weight% based on total weight.본 발명은 모발용 조성물에 관한 것으로, 보다 상세하게는 하이드록시 함유 결정성 입자 부유제를 사용하여 저점도 실리콘 오일을 안정하게 분산시킴으로써 모발에 부드러움을 제공하는 모발용 조성물에 관한 것이다.