The Japanese word for soap is sekken (traditional Japanese) and sōpu (English loanword).
|Soap (English loanword)|
Interesting facts about Japanese soap
Although bodywash in Japan is popular, it still does not compare to the traditional Japanese soap bars. Not only are the ones from Japan far more eco-friendly because they come wrapped in paper or thin cardboard, but they also contain 100% natural ingredients like horse oil, charcoal, kelp and ocean mud clay.