I will be honest, this is the third detox I tried. The first two failed and I had low hopes for this one. Out of desperations I bought it because it was my last hope for passing my drug test on time. I smoke several times daily and because of it I felt that my body was just going to have to get clean naturally. I almost turned down the job offer because I didn't want to come out dirty and keep it on my record. THis came in the mail the very day I expected it to. I started it immediately after I got it and didn't even have time to take the pills. I passed just by taking the drink!