Bitter herbs like dandelion root, milk thistle, blessed tea etc. are AWESOME for detoxifying your liver. The problem...they taste HORRID.
I'm not picky but they are horrible tasting. I mean really really really bad. If you can man it up and drink them, kudos to you but I personally would just use a capsulated liver aid supplement like n2guard from n2bm.com like @stevesmi suggested.