We recommend two different methods of bleach timing dependent on your specific time constraints. The first method is such that you use the bleaching tray/bleach combo for 2 hours following a thorough brushing of your teeth. The second method has you using the bleaching system while you sleep. The choice is really yours and both will work well.
Additionally, if you've been given the Opalescence 35% bleach, the bleach time is now cut down to 30 minutes per session.
Note that if you've had the in-office bleaching procedure you will also be given a set of trays and bleach material to use as prescribed. We recommend another 3-4 days of application to achieve a maximal result.