Many of us want a whiter smile, but are concerned about the chemicals in commercial whitening strips. Consider a healthy alternative: berries! Strawberries contain malic acid, which can help remove surface stains from teeth-safely and economically.
Mash one strawberry into a paste with a fork, and amplify the whitening power mixing baking soda. Apply to the teeth with a soft toothbrush, leave on for five minutes, then brush with toothpaste to remove the mixture.
Note: Both baking soda and fruit acid can be very hard on the teeth, so do not use this mixture more than once a week.