it worked for me, i didnt smoke for 14 days but i smoked alot before atleast 5 blunts a day not fattys just small ones i quit when i knew i had to go in and got this drink. let me tell you know this shit is indescribably horrible tasting, it took me almost a hr to drink it lol so drink it atleast 2 hrs before you go in a hr to drink it a hr for it to do its work, your going to be pissing like crazy so control yourself, i stopped at 2 gasstations and the drive is only 45 minutes it was crazy but it supposidly keeps you clean for 5 hrs if you can take drinking it it worked for me