An objective of the present invention is to provide a surfactant composition which hardly causes the formation of an insoluble salt and which contains a safe and extremely stable micelle or vesicle. Also, an objective of the present invention is to provide a hair cosmetic material which contains the surfactant composition. The surfactant composition according to the present invention is characterized in comprising a micelle or a vesicle which contain surfactin and a specific cationic surfactant.
