I was a smoker for 37 years I tried zyban ,patches nicotine inhaler,chantex and cold turkey Nothing worked!!!! I got a vape pen and nicotine juice 24mg 1st day I dropped from 40 cigs a day to 4 .Next day I was told I should try 30mg nicotine because I had been such a heavy smoker .I tried 30mg nic on my 2nd day of vaping and have not had a cig. since !!!!! I feel a lot better .Much easier to breath, cough is gone and I can laugh without coughing . The best part I have hope for my future health. I knew if I didn’t get off cigs I would soon be on a oxygen tank now I have hope maybe that wont have to happen. I was shocked how easy it was to switch. Even the first day of vaping when I had a cig it tasted nasty!!! I could not believe one day was all it took. I was hoping to gradually switch over, but even a heavy smoker can make the switch painlessly with the right mgs of nic I will never go back and IM sooooo happy to be free of cigs .My hope was gone I was sure I was doomed ,but now Im free THANK GOD