2pcs Oralhoe Toothpaste With Mild Lactic Acid Bacteria Ingredients Can Clean Teeth Stains And Maintain A Clean And Fresh Taste For Daily Care Our toothpaste is carefully formulated with calcium carbonate and sodium lauryl sulfate. Designed specifically to improve the sensory sensitivity and discomfort caused by hot and cold stimuli. The usage method is extremely convenient: Apply an appropriate amount of the paste with a toothbrush， use the Bass method for 2 minutes， rinse thoroughly with clean water to remove any residue， and use it once in the morning and once in the evening every day. And it contains micron-sized calcium carbonate， which can gently polish the surface of teeth， and active lactic acid bacteria help balance the oral environment.