The vaping liquid (also called e-liquid) typically contains propylene glycol, vegetable glycerine, plus flavours and the option of nicotine.
- Propylene glycol creates a throat sensation similar to smoking.
- A higher ratio vegetable glycerine gives more vapour.
- Different flavours are added for personal preference. These are regulated under the Australia New Zealand Food Standards Code.
- Nicotine is optional, and comes in different levels of strength.