Pearl Drops Smokers Mouthwash Pearl Drops Smokers Mouthwash is a double action formula that helps remove tar & fight tobacco odour for a clean, fresh mouth even if you smoke regularly. It helps to prevent a build up of tar & nicotine which can build up into a film in the mouth, a cause of "smoker's breath". Pearl Drops Smokers Mouthwash also contains an antibacterial agent that is clinically proven to help stop the build up of plaque, when used alongside regular brushing, to keep your teeth looking cleaner & brighter.