Freshen your breath with the swissdent extreme mouthwash a powerful neutralising formula with patented oxygardtechnologie to improve the bad breath caused by smoking eating and drinking this alcohol free mouth wash works to cleanse the teeth gums and tongue gently and effectively as well has preventing the formation of plaque the extreme mouthwash whitens the teeth by oxidation of the stored colour pigments swill 1 2 cap fulls of undiluted extreme mouthwash around your mouth for 30 seco