I bought a 20-day treatment of Crest White Strips, and I'm wondering when I should start them. Is there any logical reason why I should start them any earlier than 20 days before the wedding? Like... is there a chance they won't work and I should have some time padded in to run to the dentist to get it done professional, or could they even come out too white (if there is such a thing) and I would need some time to let them fade a little?
I've never done these before, so I have no clue. Everything I've read seems really positive about them, but if anyone has personal experience I'd love to hear it! I do realize I'm over thinking this haha.