how to whiten teeth overnight?
['Using Baking Soda. Baking soda has natural teeth whitening property. ... ', 'Using Activated Charcoal. Activated charcoal binds with any material it contacts. ... ', 'Using Hydrogen Peroxide. Naturally, hydrogen peroxide is a bleaching agent and can kill bacteria in your mouth. ... ', 'Using Apple Cider Vinegar. ... ', 'Using Fruits and Vegetables.']