DIRECTIONS FOR MAKING YOUR TEETH WHITER WITH BANANA PEEL Peeling bananas won't make your teeth whiter. Numerous articles advise spending a few minutes rubbing the peel against your teeth. 2This is no more efficient than cleaning your teeth, but it might remove some surface stains. 3.Peels from bananas don't have any unique whitening qualities. Additionally, you can use baking soda. A paste that can be applied to the teeth's surface can be made by combining baking soda with another liquid. You won't regret implementing this idea if you do this for more than a week.