Our American Tobacco e-liquid is made with freebase nicotine, which is the traditional form of nicotine used in e-liquids. The primary difference you'll notice compared to nicotine salts is the throat hit. Freebase nicotine, especially at higher strengths, tends to provide a more pronounced, 'harsher' throat hit, which many vapers prefer as it mimics the sensation of traditional cigarettes. Nicotine salts, on the other hand, are designed to deliver nicotine more smoothly even at higher concentrations, with a much milder throat hit. If you enjoy that classic, robust sensation at the back of your throat, our freebase American Tobacco is an excellent choice for you