Salt Nicotine is made up of the exact nicotine found in the tobacco leaf itself. Great. But if we were to simply vape this nicotine by adding it to our fluids we would need to do so at a very high temperature in order for it to be effective.
Counterfeit products as a general rule are products manufactured clandestinely as an exact imitation of an original product in order to deceive or defraud for profit. Counterfeit products are not made with the same diligence as the original manufacturers do, the quality of materials or substances is lower and so is the outcome.
The ability to mix, create your own favourite flavour or spice up your already amazing eliquid comes with time. While the beginner vapers will always choose the easy way, that of buying a vape ready ejuice, the veterans of vaping rather prefer to master their skills into crafting their vape.