Let's start off with traditional e-juice, which is made with Freebase Nicotine. This produces a noticeable throat hit, however it takes a few minutes for the nicotine to actually absorb into one's system.
Salt based nicotine, or Nic Salts (NS) are crafted with benzoic acid, which allows the nicotine to hit one's system instantly. There is less of a throat hit than with freebase nicotine.
Regardless of what kind of e-juice you select, the nicotine is content is displayed in the same manor:
Nicotine per Millilitre (mg/mL)
So a 3mg e-juice has 3mg of nicotine in each millilitre of e-liquid.
Initially, nic salts were designed for MTL vapes with higher concentrations of nicotine (such as Salt Nix and 7Salts) or even in pods (STLTH). Since then, more companies have been offering nic salts crafted for DL vapes (Salt Nix Boost).
Try out some nic salts today!