Armamphammer advanced whitening 75ml is perfect for those of you who like to keep their teeth in tip top condition but enjoy the added benefit of a gorgeous sparkling white smile arm amp hammer advanced whitening contains high levels of baking soda to provide a highly effective yet very gentle cleaning process baking soda is renowned for its special ability to clean and whiten teeth it is clinically recognised as a very gentle yet effective cleaning agent that has been proven to be eff