Never use baking soda to whiten your teeth.

Baking soda is highly abrasive. For this reason, it is also used to clean pans and pots. Now imagine what she will do with her teeth. Instead of a snow-white smile, you will get a lot of cracks and irregularities on the surface of the teeth, which will subsequently be stained. As a result, you will get pigmented plaque with increased tooth sensitivity. Whitening with berries, banana peel, lemon juice will also only harm the teeth and destroy their protective layer.