ur only hope is to buy one of thoes drinks, most of the people here ive noticed dont seem to like them very much, but i swear its gotten me outta a bad situation, and all my friends swear by them, i knwo ppl who have smoke right up to the day before their test taken the drink liek they here supposed to on the day of the test smoked right before they went(doesnt go thru ur system quick enough to show up) and passed.