Should I swallow the teeth whitening gel?
Mar15

Should I swallow the...

First of all, if you are asking this question, you have to be using too much gel. You just need a tiny bead of gel to cover 2/3 of the front of your tooth only. And you don’t need gel for all your teeth. Focus on 9-10 spots on each tray. If gel is oozing out of the tray, you have used...