Peppersmith 100 xylitol peppermint chewing gum is proven to reduce plaque and is 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 and aspartame peppersmith gum is a refreshingly tasty way to keep your teeth healthy throughout the day chew two pieces of gum three times a day ideally after snack and meals peppersmith 1