Iveri is a dentist designed teeth whitening solution. Iveri contains Potassium Nitrate which protects teeth from sensitivity. It is a whitening solution that provides results in a short amount of time.  Features and Benefits: • Contains potassium nitrate • Whiten at your own convenience • Wear trays for 20 minutes  Kit: 4 x 3.5 ml Syringes, 2 Custom Tray Sheets, Tray Carrying Case, Teeth Shade Guide