Dandelion is real good for your liver. You can probably get an extract if you don't use fresh. Not sure about powdered capsules on that.

the parasite cleanse/liver cleanse, Hulda Clark recipe is an excellent liver rejuvenator. There's a daily cleanse link with olive oil lemon juice and ginger that would probably be helpful for a quick measure also. That link is in the 'liver cleanse is baloney' thread... but it's not baloney it's excellent. Mikey posted that link in there it's in one of his posts.