Whiter Teeth ~Baking Soda and Lemon. This may be one of the most popular of the natural teeth whitening home remedies. The chemical reaction of baking soda with the citrus of lemon juice has a smile-brightening effect. Together they are super-effective.
Another Pinner Wrote: DIY Teeth Whitening Remedy Dr. Oz Teeth Whitening Home Remedy: cup of baking soda + lemon juice from half of a lemon. Apply with cotton ball or q-tip. Leave on for no longer than 1 minute, then brush teeth to remove.