I've been undertaking the task of making some of my own cleansing products & bath/body care. However, almost every recipe that I've looked at has lye or glycerin in it, neither of which do I want to use. I have read a good deal of info on it too, and everyone says that you really can't make a sudsy soap or cleaner without lye.
WELL! Look at what I found! :) These Soap Nuts have been used for centuries as a cleaning agent and for personal hygiene because of the substance "saponin" found in large amounts in the shell of this fruit. Our Latin root for soap is "sapo." Interesting, huh?