I found that these strips never worked and caused my teeth to become very sensitive give there 2 thumbs down

I received a few samples of the crest whitestrips and was very satisfied with the results. We have since purchased a full size box and we are very pleased with the results.

It's too expensive for the results you get, terrible and was disappointed

easy to apply works great and its worth it but its a bit expensive.

These strips work well, they definatly white your teeth, although the price could be a bit cheaper.

The price is very much affordable, however, the strips are really painful and kind of not too effective, well for me.

I didn't believe that they would work. But, after only two weeks, my teeth were noticeable whiter. love these things!

Does absolutely whiten teeth, but the strips don't really whiten the back teeth.

Despite hearing that whitening your teeth with these kind of strips is not good for your enamel, I thought I would try it at least once! And oh boy, I was so pleased with them! I used the 7-day pack, twice a day and my teeth got at least 3 shades lighter! Granted, they weren't too horrible to begin with seeing as I'm not a smoker or pop drinker, but nonetheless, the results were great! :)

I find it hard to recommend Crest Whitestrips even though they do work.
The comfort factor is what turns me off from these.
I hated the feeling of the strips on my teeth and the sensitivity that they caused me was unbearable.
So, yes they do whiten your teeth. But for me, it's not worth the pain.
And it's not just pain while you're using them, I found my teeth extremely sensitive for quite sometime even after I stopped using them.