What is Salt Nic? Nicotine salt is a chemical formulation of nicotine that decreases its harshness, allowing vapers to comfortably get more nicotine while inhaling less vapor. The terms nicotine salts, nic salt, salt nic, or salt nicotine all mean the same thing. Nic salts are a type of nicotine used in e-juice. But One noticeable difference is the harshness induced by higher nicotine levels. Freebase nicotine has a higher pH level which affects the alkalinity. Whereas, salt nicotine have a lower alkalinity due to the benzoic acid which gives you a reportedly smoother throat hit and makes vaping at 50 mg nicotine bearable.this process also removes salts from it, leaving you with a freebase form of nicotine. Nicotine salts are naturally found in tobacco leaves and, when put into e-juice, remain in their natural state.