PROBLEM TO BE SOLVED: To provide a detergent which is composed of a phytochemical, can be stored at ordinary temperature, does not contain a substance prohibited to use in the United States or Japan and can maintain detergency and antisepsis in a condition where components having restrictions on use amounts are not contained at more than maximum content values.SOLUTION: The pericarp of sapindus mukurossi and glycerol are mixed in the ratio of 1:9 to 1:1 and the saponin contained in the pericarp of sapindus mukurossi is extracted with glycerol to obtain the detergent, which is composed of a phytochemical, can be stored at ordinary temperature, does not contain a substance prohibited to use in the United States or Japan and can maintain detergency and antisepsis in a condition where components having restrictions on use amounts are not contained more than maximum content values.