Baking Soda
Baking soda contains many natural whitening properties. That’s why you can find it in the ingredient list of many commercial toothpaste products. As a mild abrasive, baking soda can work by scrubbing away stains on the surface of your teeth. Also, it would create an alkaline environment, which can keep bacteria from thriving. You will not see results immediately, but there might be a considerable difference over time.[3]
