Specifications:   Content: 200g   Shelf life: 3 years   Features:   1. Adding hyaluronic acid can remove pigmentation on the tooth surface and restore the white glass of the teeth.   2. Protect tooth surfaces, prevent tooth decay, and keep teeth healthy.   3. Reduce oral odor and keep breath fresh and pleasant.   4. The ingredients are safe and mild, suitable for owners, including those with sensitive teeth.   How to use:   1. Take an appropriate amount of toothpaste on the toothbrush 2. Use the correct way to brush for 2-3 minutes 3. Rinse your mouth with water