Teeth Whitening

What whitening substance for teeth can you recommend to diminish the yellow stains on my teeth that is not expensive. It is better if it is found on home. My teeth arent really that yellow but I want it to improve its appearance. ThanksYou can use baking soda..

The most cheapest way and very economical. All you have to do is put toothpaste on your toothbrush and top it with a few pinch of baking soda…then you’ll have white teeth and you can have your million dollar smile friend!