This is just a cut and paste from a supplier I know of. (Edited for space)
Benzoate – Highest throat-hit & works great with all flavour types.
Salicylate – Works best with mint, menthol and ice flavours.
Malate – Works best with sour flavours.
What is Benzoate Salt Acid (NicSalt-B)?
Benzoate is near neutral with its pH 6.5, and provides an ultra smooth throat-hit giving a nicotine buzz that is as close to a real tobacco product as possible, without smoking. Benzoate is the most popular of the nic salt acids, as it’s the first one to be produced, and used in vape products such as JUUL pods. In terms of vaping, it provides the most throat-hit with the least irritation, and the taste is the most preferred.
We now use Benzoate 2.0, which the the clearest version available online!
What is Salicylate Salt Acid (NicSalt-S)?
Salicylate is more acidic and has a pH 4.8. However, it still provides a smooth throat-hit. The properties are close to Benzoate, with little to no flavour changing effects. It is considered the most neutral out of the 3 acids. Salicylate is an acid found in many fruits, and is know as Chill Salt due to the cool taste it gives when vaped. It works very well with ice, menthol and mint flavours.
What is Malate Salt Acid (NicSalt-M)?
Malate is distinct by having the middle ground between all 3 salts, with a pH of 5.6, and is the only 100% natural salt. Malate acid is created by adding malic acid (sour) to pure nicotine (iso), which results in the most delicate throat-hit and aftertaste. This also allows the flavours to pop and provides the same properties as other acids. Malic acid occurs naturally in many fruits.