Whiten teeth from home with the janina maxiwhite teeth whitening pre filled trays a low abrasion five day system that brightens the smile without using harsh ingredients the pack contains ten pre filled ready to use trays the soft and flexible trays are designed to fit all sitting comfortably on both the top and bottom rows of teeth to provide effective whitening action for the entire mouth working tirelessly for 35 minutes the whitening treatment utilises sodium percarbonate which se