Peppersmith 100 xylitol peppermint mints are proven to promote healthy teeth and are accredited by the british dental health foundation xylitol works by inhibiting the bacteria that causes plaque and tooth decay its also low calorie low gi and naturally derived free from artificial colours flavours preservatives and aspartame peppersmith mints are a refreshingly tasty way to keep your teeth healthy throughout the day eat a few mints three times a day ideally after snacks or meals