Nicotine salts are a type of nicotine found in tobacco leaves that are blended with e-liquids to deliver nicotine to the body. They are created by mixing pure nicotine base with an acid or multiple acids, such as benzoic acid or levulinic acid, which lowers the pH level and allows for quick absorption and a mild throat hit. This process creates a salt nicotine solution and reduces the harshness of higher strength nicotine vape juice. Nicotine salts are less harsh and less bitter than conventional nicotine, also known as "freebase" nicotine, and as a consequence, e-liquids that contain nicotine salts are more tolerable even with high nicotine concentrations. They offer a mild throat hit, bold and complex flavors, and the highest nicotine strengths available. Nicotine salts vaporize at a lower temperature and with a lower pH level than freebase nicotine. They are a popular alternative to smoking traditional cigarettes and are ideal for those who have long intervals between smoking.