Provided is a cationic group-containing
cellulose which, when incorporated in a hair wash composition, is able to give an excellent smootheness feeling and its sustained feeling in rinsing and give a good coat feeling, and which, when incorporated in a
skin cleanser composition, is able to give an excellent moist feeling to the
skin after washing and
drying, and also provided are a surfactant composition, a hair wash composition, a
skin cleanser composition, a
hair conditioner composition and a
hair treatment composition containing the
cellulose ether. [1] A cationic group-containing
cellulose ether, which has a main chain derived from an anhydroglucose, and in which the
degree of substitution with a cationized oxyalkylene group per the anhydroglucose unit is from 0.01 to 1.0, the
degree of substitution with a
glycerol group is from 0.5 to 5.0, and the
degree of substitution with a group that contains a branched
hydrocarbon group having from 8 to 18 carbon atoms and has a specific structure is from 0.001 to 0.2; [2] a surfactant composition containing the cationic group-containing cellulose
ether, a surfactant and water; [3] a hair wash composition, a
skin cleanser composition, a
hair conditioner composition and a
hair treatment composition containing the cationic group-containing cellulose ether, a surfactant and water.