Core Combination of Herbs (The core): The combination of Zanthoxylum Nitidum, Clinopodium Chinense, and Mulberry Leaves is the heart of Teagrance, Dr. Gingiva and LMZ Herbal Toothpaste. In Dr. Gingiva, in addition to stannous fluoride for stopping gum bleeding, the combination of the OTC drug with the herbs helps restoring gums, preventing gingivitis, and maintaining gum health more effectively.