A non-ionic surfactant with content of monoesters increased through our original synthesis technique, and with excellent foaming capability and cleaning capability. Exceptionally safe, able to reduce tightness after cleaning, and provides a pleasant feel even after cleaning. A cleaning ingredient conceived for skin care, which excels at cleaning the sebum, does not take away amino acids from the skin, and doesn’t irritate the skin. Meets the requirements of a cleaning prescription that produces healthy skin.