Use as a mouth rinse following oil pulling. Tulsi contains components like ursolic acid, rosmarinic acid, and eugenol that work to reduce inflammation. Since they also have antibacterial and antioxidant properties, these compounds found in holy tulsi may reduce plaque buildup on your teeth and lower your risk of developing other periodontal conditions. Tea Tree is a natural remedy for bad breath and contains ingredients that diminish plaque. This oil is a perfect ingredient for a mouthwash because of its ability to kill off bacteria, diminish tooth decay and relieve bleeding gums.