Due to its dual functionality as a soap and a scrubber, esponjabon soap is a widely used product. It can be used on the body, the face, the knees and elbows, the feet and heels, and more. The word “scrub” was coined because the soap is not a liquid (like hand or facial soap). Typically, we just use the scrub portion on sensitive body parts like knees, elbows, and heels.