Swissdent extreme mouth spray is enhanced by oxygard technology which fights the bacteria that causes bad breath by oxidizing it the same oxidizing process also fights superficial colour pigments on your teeth and whitens at the same time swissdent extreme mouthspray can be used immediately after food alcohol or tobacco to reduce the bacteria which causes bad breath it is the strongest version of the swissdent mouthsprays guaranteeing fresh breath for at least three hours with a whiteni