These are Zero nicotine E-Juices with all of your favourite flavours in large bottles with space which allows for the optional Nicotine Booster to be added if required. The great thing is the price!! these are a lot less expensive (per 10 ML) than the small bottles and the bonus is you can add as little, or as much, nicotine as you want. This allows you to gradually reduce your nicotine dependency if desired.