I use these whitening strips about twice a year (I love my wine and coffee lol) I definitely see s huge diference after the 4 th day and by the 7th day my teeth look like they've been whitened at a doctors office

These work great on my teeth. I will be 40 this month and by using these strips they make me look late 20's. Do not use over 15 minutes. I only use 10 minutes myself because of the sensitivity.

Love these whitening strips. You leave it on for as little as 30 minutes and they are easy to remove. My journey with these strips just begun but I am loving them so far!

I use these occasionally when I'm looking to brighten my smile and they work SO WELL!! If I go through the whole process for about a week, my teeth become so white. To upkeep that, I just use a strip every so often.

Works well! Have to use it for a few days or up to a week! Can make your teeth very sensitive to cold items but worth it! White teeth makes for a happier smile!

this product works wonders in such a short time. Compared to mouthwash I would recommend these strips. Give it about two weeks to see amazing results. I've been using them for about a year and they never disappoint.

I haven't try Crest products ever and i would be happy if i get chance some day to try it. Here in Europe is to heavy to find some white strips so i would be blessed if i try it and if they work on my teeth ;)

Crest 3d white is the best tooth paste when it comes to maintaining the whiteness of my teeth. Brushing with this tooth paste between using crest white strips keeps my teeth white and bright!

i've seen the effects of the whitening strips and it's incredible! the only downside is that it takes a while to get your teeth to the shade you want them to be at... definitely will keep buying!

These surprisingly work great on my teeth! I didn't think they would but i have purchased them a few times within the pst couple years... they last a while because you don't have to do it so often since they actually make your teeth really white!