Salt Nic vs Free Base
The type of nicotine used in your eliquid will have a major impact on your overall vape experience. Freebase (deprotonated) nicotine is the purest form of nicotine and the only type of nicotine used in eLiquids up until 2017 when nic salts and compact pod devices hit the market. Nicotine salt eliquids allow you to vape higher nicotine level eliquids while maintaining a smooth throat hit. Nic salts are to be used in MTL or Pod devices only.