There is no harm in trying this method of teeth whitening because it is very cheap and easy to use.
There are some enzymes in banana peel that can help in whitening our teeth, one of it is called catechins. This catechins has the substance that help breakdown tooth decoloration, such as plague and tannins, they have antimicrobial properties that prevents tooth decay, in as much as we can use banana peel for teeth whitening, just have it at the back of your mind that it cant be as effective as professional whitening treatment.
How To Use
A. First of all, take a ripe banana and remove the peel.
B. Rub the inside of the peel on your teeth for about two minutes.
C. The enzymes in the banana peel are what help to whiten your teeth. After you’ve rubbed the banana peel on your teeth.
D. Rinse your mouth with water and brush your teeth with a fluoride toothpaste. You can repeat this process up to twice a week for best results.