Our 5-day teeth powder contains sodium bicarbonate and wheat starch. It helps to remove dirt, freshen and whiten teeth. Its usage is simple: clean your mouth with warm water before using tooth powder, then wipe the surface of your teeth with cotton, rinse your teeth with hot water until they are clean. After use, protect the gums by providing protein and enamel protection, whiten teeth and make them bright like pearls, remove stains on teeth and bid farewell to black and yellow teeth.