I love these Whitestrips because of how well they work. After leaving them on my teeth for 30-45 minutes I have a smile that can be seen from a mile away. These strips also don't slip around like a lot of other ones do. My main con on this product is how sensitive it makes my teeth. I can't use more than 2 a week or else my gums get white and my teeth ache when I eat or drink something too cold. 

After four to five uses of these strips, I see a noticeable difference in the color of my teeth and they’re super easy to wear on my commute to work. I used to get zoom whitening but if I’m patient, this does a great job of maintenance so I don’t have to go to the extreme zoom route.

I feel as if these do work and do not slip off of your teeth. BUT, I have such sensitive teeth that I can no longer use these. If you use these, simply be careful and aware that they can cause sensitivity. I would recommend these if you've never had sensitivity issues because they get the job done in brightening your smile.

The 3D whitestrips are my go to for whitening my teeth. I often get comments on my teeth because they are whiter than the average . Ive even had people come up to me and say " You have put alot of money in those teeth".They actuallly thought i had professional whitening done but I havent. Its whitestrips! Yep thats my secret! : )

These absolutely work! They whiten your teeth and if you use them consistently you can get blinding white teeth. The only downfall for me is that they can make my teeth a bit sensitive. I find myself buying these every once in a while to freshen up my teeth and remove stains.

[This review was collected as part of a promotion.] These white stripes work amazingly well! I saw a noticeable difference in the whiteness of my teeth after one 45-minute session. I have sensitive teeth, and these strips did not hurt my teeth or cause any additional sensitivity. Each set is an easy to open package that is small enough to be able to pack them if necessary. There was a lot of bubbling that you could even see while the strip was in place, whitening I could see!

[This review was collected as part of a promotion.] I’ve been using these for YEARS and always get compliments on how white my teeth are. They do not make my teeth sensitive and they stay on your teeth really well. If your teeth get sensitive just take a day or two off and re start. Now i just use them periodically for a refresh. Big fan

I had not visited my dentist in years and he told me that my teeth looked better than people he had coming in twice a year. I told him I had used the Crest 3d White Strips. Before I used these he had warned me years ago that I had some staining that would never go away. I showed him. These work...I had mild sensitivity but nothing too bad. Definitely will be going to get a new box soon.

Literally, have bought these since i was in middle school because I’ve always struggled with yellow teeth. When i use them they strip away the nasty yellow color and I can’t help but to continuously smile after i use them because my smile is so pretty and bright!

I was so excited to buy my Crest 3D whtie strips. I did exactly as the instructions said and I was so disappointed. So all that money down the drain. I'm happy for those that received good results but I think Crest should stand behind the product when it does not meet the expectations of it's customers, namely, me. :-(