2. Orange Peels

Another very effective home remedy that literally costs nothing to you are orange peels. Oranges are rich in Vitamin C and their peels have more of it that the actual fruit. This is what helps fight and get rid of the chemicals and bacteria on your teeth that cause discoloration.

Simply rub your teeth with the inside of an orange peel every night before going to bed and you will begin noticing a change within a few weeks!