As a former smoker, I took up vaping to rid myself of the bad crap in the ciggies. I have gone 0 nic with my juice leading up to surgery. IF I ever go back to nic, it will be really low. Unless you have smoked, you just don't know how hard it is. Plus, vaping is not as bad as people make it out to be. In the end, very low nic is about as harmful as caffine. Darth Vaper