Tar and nicotine can build up into a film in the mouth which may cause smokers breath pearl drops smokers mouthwash is a double action mouthwash with special cleansers plus active fresheners which neutralise stale odours for a fresh clean mouth it also contains an anti bacterial agent clinically proven to help stop the build up of plaque together with regular brushing for best results use daily and brush with your regular toothpaste to help keep your teeth looking cleaner and brighter a