Nic Bars are made with salt-based nicotine at higher nicotine strengths without the extremely harsh throat hit. The main difference of vaping salt-based nicotine is the rapid absorption rate into the bloodstream. Although salt-based nicotine does not absorb into the bloodstream as quickly as combustible cigarettes, its absorption rate is quicker than normal E-Liquid which imitates the rush from a cigarette more similarly.
