If you've never been a smoker, I won't knock you for having juice with Nicotine, but I have to ask, "Why?". If you are sensitive to Nicotine, as suggested, buy the same flavor in 0-nic and mix the two 1:1... that will give you 3 mg Nicotine. I would suggest that you don't go any higher than that, AND if you're going to sub-ohm, you may think about mixing even more 0-nic, say 3:1 to get to 1 mg nicotine... or just use the zero?? Nicotine is absorbed MUCH faster by the body when it is hotter, which is why when sub-ohming, most of us use 0-6mg Nic levels, even though we'd vape 12-24 mg in a non-sub-ohm tank.