I am trying to give up smoking after fifty odd years,I find the vype pens an invaluable aid to this task.I started off at 18mgs am now down to 12mgs, next stop will be 6mgs.Having had a cigarette in my hand all this time I'm going to continue to puff away on the zero mgs with some different flavour that I will try at a later date.I couldn't have gone 10 weeks, as I have done ,without the aid of the vype pen.For me it's worked a treat.