Well, I'm doing the Master-Cleanse right now to help quit smoking. I've done it two other times and just couldn't stop smoking while cleansing. I feel a lot better, more alert and energized, this time without smoking...so far so good, but I understand completely. It's such an addictive habit. One other thing, I got itchy red spots, some kind of creepy rash on the previous MCs. I don't know if it was related to smoking or not, but I've no sign of them this time around (I'm on day 7), and it makes sense that all those toxins went straight to my skin. Well, good luck! You'll feel better even with smoking, and we all quit thngs when we're ready.