The nicotine levels in an best electronic cigarette are a vital characteristic as it allows users to their satisfaction to higher or lower their dose of nicotine. However, there are several people that like to utilize a nicotine-free liquid as a means to fulfill their smoking habit. It’s necessary to mention that e-liquid producers would not have a conventional dose level. However, there are some general guidelines which they follow when preparing their products. Finding the best e-liquid will depend on balancing the nicotine amounts out to the right amount.