I smoked for 26 years. When I saw the electronic cigarettes, I really hoped that it was all that it said it was. I started using the orginal type that looks like a cigarette, but it wasn’t the same. I continued using it without smoking anyway, but started looking for other types which I am now quite happy with. I stopped smoking in May of 2011. I still use the electronic cigarette, and probably always will. Nicotine isn’t the problem. It’s the smoke and carcinogens that are. I read that they are studying nicotine as a pharmaceutical for things like OCD. I use the 24 mg liquid PG. I am so grateful that this was invented, and prayed for it to work.