Features: 1. **Effective Stain Removal**: Our Teeth Whitening Serum utilizes powerful ingredients like baking soda and menthol to effectively remove stubborn tooth stains, revealing a brighter, whiter smile. 2. **Easy Application**: Simply dip a cotton swab into the serum and apply it directly to your teeth. Rinse with warm water for a quick and hassle-free whitening experience. 3. **Long-lasting Results**: With regular use, our serum not only whitens teeth but also helps maintain oral health, ensuring your smile stays bright and fresh over time. 4. **Natural Ingredients**: Formulated with ligusticum chuanxiong extract, our serum provides gentle care for your teeth and gums, balancing oral acidity and alkalinity for optimal oral health. 5. **Refreshing Mint Flavor**: Enjoy a fresh and clean mouthfeel with the invigorating menthol in our serum, leaving your breath minty fresh after every use. Our Teeth whitening serum contains menthol, baking soda, ligusticum chuanxiong extract. It can whiten teeth, make your teeth bright and shiny, remove tooth stains, and long-term use is better. Its use method is very simple: clean the mouth with warm water, use a cotton swab to dip the right amount of this product, wipe the surface of the teeth repeatedly; Rinse with warm water until the plaque is wiped clean. Scientific care, light yellow light spot relief, clean tooth stains, fresh mouth, conditioning mouth, balance oral acid and alkali.