Item Type:Teeth Brightening Pen How to use: 1.After teeth cleaning, dry the surface of your teeth 2.Pull out the cap and rotate the end clockwise to squeeze out the rice-sized condensation onto the brush on the head 3.Open your mouth and expose your teeth to your lips. Apply the product evenly to the upper and lower tooth surfaces. 4.Apply a thickness of about 1mm, avoid gums, do not eat something within 30 minutes, rinse with water after 30 minutes Package Included: 1 XTeeth Brightening Pen