Q. How long do I need to leave the teeth-whitening gel on?

Answer

If you are using teeth whitening gel for the first time, it is advised that you keep it on your teeth for thirty minutes to one hour. If there is minimal or no tooth sensitivity, you may extend the amount of time that you should use the gel. It may take more time to bleach your teeth if they are discoloured or extremely yellow before you start. In addition, if you do not feel any irritation while wearing the trays, you are free to do so for up to two hours. In order to prevent further bleaching of your teeth or harm to your teeth and gums, it is crucial to remove any surplus whitening gel ingredients from around the gums when you finish.