Second, folk teeth whitening recipe, will chew peanuts into a paste, do not swallow, as a toothpaste to use, every day so dry, soon teeth can become white
Third, baking soda brushing baking soda is a weak acidic, able to break down the teeth of the tea scale or tartar, and therefore have a certain effect on whitening teeth. Use a toothbrush dipped in a little baking soda, and then brush your teeth in accordance with the correct daily brushing, you can whiten your teeth. This teeth whitening method is used about 3 times a week, and each time is controlled to about 2 minutes is OK.
Four, yeast powder brushing teeth yeast powder contains a lot of protein, but also can break down the dirt on the teeth, so for teeth whitening also has a certain effect. When you brush your teeth, add some yeast powder to the toothpaste you squeeze out, and whiten your teeth really well!