Brand from Japan: Dr.Oral. Powdered toothpaste that removes yellowing and plaque.The only powder toothpaste in the world that contains Bio 3D Apatite(R) (Hydroxyapatite)!Toothpaste range containing Bio 3D Apatite (R) (based on our research as of February 2025).Can effectively remove yellow spots and dental plaque.In addition, it also contains 3 cleaning auxiliary ingredients: sodium bicarbonate (cleaning agent), pentasodium triphosphate (cleaning auxiliary), and citric acid (pH adjuster).And 3 oral care ingredients: hydrolyzed collagen, sodium hyaluronate, Centella asiatica extract (all moisturizers).How to use:Apply an appropriate amount to a dry toothbrush.Brush your teeth and gums carefully.Rinse mouth after use.When using for the first time:Remove the lid and open the top cover.Use your fingers to push the gasket from above and remove it.After this, put the lid back on the container and it is ready for use.When opening the container, always hold it horizontally.