i'm currently on day 3 of my cleanse, a week prior to this i was smoking about half a pack a day, but now i don't really care to smoke. i've quit prior to this, and i've been smoking on and off for a long time, i'm hoping this cleanse will seal the deal for me. here's my 2 cents, if you're tough enough to do this cleanse, you're tough enough to quit cigarettes, hands down. best of luck.