Garlic contains allicin, a compound known for its powerful antibacterial properties. It helps to: Eliminate the bacteria that cause bad breath.Reduce plaque and gingivitis.Reduce the yellowing caused by accumulated bacteria. Baking Soda: A Natural Ally for a Radiant Smile Used in moderation, it acts as a mild abrasive that: Removes surface stains (coffee, tea, wine, etc.).Neutralizes acids that attack enamel.Smoothes and polishes teeth for a shinier finish. Quick Recipe: Make Your Own Whitening Paste in 2 Minutes