The present invention is a cleaning agent containing (A) an anionic surfactant, (B) an amino polyether-modified polysiloxane containing a polyoxyalkylene structure satisfying the following formula (I), And (C) a cationic polymer, and the mass ratio [(A) / (B)] of the component (A) to the component (B) is 25 or more and 5,000 or less, the component (B) and the component (C) The mass ratio [(B) / (C)] is 0.001 or more and less than 1. 0.01 ≦ Si / AO ≦ 1.6 (I) [In formula (I), Si represents the mole number of silicon atoms in component (B), and AO represents the average addition mole number of oxyalkylene groups in component (B)]本發明係一種清潔劑，其係含有或調配(A)陰離子性界面活性劑、(B)滿足下述式(I)之含有聚氧伸烷基結構之胺基聚醚改性聚矽氧、及(C)陽離子性聚合物而成，且成分(A)與成分(B)之質量比[(A)/(B)]為25以上且5000以下，成分(B)與成分(C)之質量比[(B)/(C)]為0.001以上且未達1。0.01≦Si/AO≦1.6 (I)[式(I)中，Si表示成分(B)中之矽原子之莫耳數，AO表示成分(B)中之氧伸烷基平均加成莫耳數]
