4. Teeth Whitener

Although its a bit of a stretch to say that banana peels can give you sparkling white teeth, they are quite effective to an extent. The skin of a banana contains salicylic and citric acids, which are effective in removing surface stain on teeth, and also help protect the enamel in them. All you need to is rub the inside of it on your teeth, and you’ll have yourself a cost-free, chemical-free aid to dental hygiene.