Soapnut leads people return to the nature. Instead of chemical detergent. No irritability. Chinese Soapnut (Sapindusmukorossi Gaertn) also called "Wu Huan Zi" Soapnut contain saponin, a natural detergent which is used to clean clothes. Soapnut, especially Chinese Soapnut, have become popular as an alternative to manufactured, chemical detergents among those who live in an environmentally friendly ...