How long does it take for Crest WhiteStrips to work and make your teeth whiter?

Question

and do u know eney whiterners that work in a week and are cheap or just work in a week !!!!!!!!!!!!!!!!!! i really want to know because a think i am preety until i open my mouth then thet is when i think i look kinda ulgy

Answer 1

Professional strength crest whitestrips work really quickly. You will notice a difference after 3 days.

I use them myself. I usually only do 3 days at a time because they do cause tooth sensitivity if used more... at least in my case. Once a month or so I'll put them on and I get complements all the time about my pearly whites!!

Answer 2

didnt you read the instrucions or the box DUH

Answer 3

I've used the Crest, they usually get pretty white within the first week... and keep getting whiter from there. They're great I need to use them again :)