How long does Nicotine stay in your system
Are you considering switching from smoking to vaping because you hope that vaping will eventually make it possible for you to quit nicotine entirely? Maybe you’ve already switched fully to vaping, and you’re interested in stepping down to progressively lower nicotine levels.
In any of those situations, it can be very useful to know how long nicotine stays in your system.
How Long Does Nicotine Stay in Your System

Suppose you have 4 mg of nicotine in your system. In that case, you’ll have 2 mg remaining in your system after approximately two hours. Two hours after that, you’ll have 1 mg remaining. Two hours after that, 0.5 mg will remain – and so on.
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