Cranberry doesn't really do much for detoxification but it will clean your urinary tract. It is your PO's job to lock you up, don't give him a reason to do that... read Passing Drug Tests. It's about a guy who did a few years on parole, smoking weed just about everyday, and what he did to pass all of his random UA's. It was written with a doctor of chemistry, it is extremely informative and it's hilarious. Anyone who reads it will be able to pass a random UA!