Re Earth Diswash bar is made from simple ingredients like:
Wood Ash, Cow Dung, Coconut oil, Caustic Soda and lemon essential oil for fragrance.
 
Its an age old formula which India had been using for a very long time, but got lost somewhere due to the advent of these cheap chemically induced bars. Not only are those soaps harsh on your skin but also extremely irritating to the water or the soil it ends up being flushed into.