I just finished my bottle of Sonny's #7. I am thinking about going to the herbal store here and buying some Benenite powder in bulk. Can someone tell me if there is a big different in how they detox. I would prefer to go the powder route since it is cheaper and also to use in in making my own cosmetics. If I go the powder route.. do I need to look for a certain type of benenite clay powder? Thanks.