The Tung gel works great with the Tung Brush to help remove bacteria from the tongue which can cause bad breath. Brushing your tongue is just almost as important as brushing your teeth in order to have fresh breath. The Tung gel has Zinc Chloride which helps neutralize your bad breath, leaving you with fresh breath all day long. The tung gel also features a refreshing mint flavor and leaves no residue behind. If you are one of the many people who have bad breath and want to change that try the Tung gel to give your tongue a refreshing clean feeling.