To understand more how nic salts work, let’s take a look at the other nicotine option, freebase nicotine.
Traditional e-liquids were made with what is known as freebase nicotine. Completely different to nic salts. Freebase nicotine is the ‘purest’ version of nicotine. You don’t have to do anything to it except add it to your e-liquid in the correct ratio.
Nic salts are made from the nicotine, which is in its natural state. Just like the same compound, you would find in a tobacco leaf. If you added this material to your favourite e-liquid, you would have to turn the heat up so much that it wouldn’t be vapable. Also, the nicotine itself wouldn’t absorb very well so you would have to vape a lot more. The trick here is a little modification before the nic salts are ready to vape!