http://www.ukcia.org/activism/soapbar.htm
theres the link 2 the site
red662 Reviewed by red662 on . Cleaning Soapbar!!! Well, it's not that easy, but you can try this if your stash is bad enough: In a saucepan, boil up a small amount of water (perhaps to a depth of 2 cm or so). Add your yucky sample of crap soap Simmer gently and crush the hash block The water will more than likely turn yellow, maybe due to the henna (or worse) dissolving out. Rating: 5