Natural Tea Tree Baking Soda Toothpaste This Natural Tea Tree Baking Soda Toothpaste is packed with benefits for your teeth and gums. Tea tree oil has antimicrobial and antibacterial properties that will kill harmful bacterial and prevent plaque build-up on your teeth. It has a cleansing camphorous scent and antiseptic properties that freshens your breath. Baking soda is also an all-natural way to clean your teeth and gums, remove stains and whiten your teeth, and freshen your breath.