@glowinwithcourtney: DR.DENT did not disappoint! These are definitely worth the buy. If it wasn’t for my front tooth being fake, I would probably go through and do this more often to see how much whiter I could get then but due to that I am not going to try. I left them on for 45 minutes during that time span I did not feel any sensitivity or discomfort whatsoever and normally white strips do tend to cause some sensitivity for me. If you’re looking for some whitening strips, I definitely recommend these. They are worth the hype!! @[email protected] - shopt#teethwhiteningb#brightersmilew#whiteningstripsd#drdentteethwhiteningp#purpleteethwhitening