What happens when you a teeth bleaching kit on for more than an hour?!
Question: the instructions says 30-60 mins, what happens if its more than an hour?
Answers: the instructions says 30-60 mins, what happens if its more than an hour?
Nothing, it stops working.
Well, if it was the first time...nothing much could happened except a lil' sensitivity on your teeth when u have a cold drink, and usually go away in few days... U will be fine..just don't neglect too often!!!