Nicorette icy white 4mg gum is for the relief of nicotine withdrawal symptoms as an aid to giving up smoking as well as contains some ingredients which provide whiteness to your teeth. You are more likely to quit smoking when using this product with help from your pharmacist, doctor, a trained counsellor or a support program. This product strength is suitable for those smoking more than 20 cigarettes a day. It is used to help smokers ready to stop smoking immediately and also to help smokers who need to cut down their cigarette use before stopping. Helps overcome your urge to smoke. andalso contains a number of ingredients which will improve the whiteness of your teeth.