These made my teeth hurt so bad after. I never knew my teeth could be in such pain and so sensitive. I couldn't drink or eat anything for a whole day.

Saved me a couple of bucks. Tried a lot of whitening products but not one really worked at all. This one is a gem. I really worked for me! Made my teeth 5 shades whiter

These whitening strips are very effective but can be expensive. I don't use these often because of the price but haven't found another product that works the same. It does take multiple uses to see a result.

I love crest whitening strips. They are a little pricey but they really get the job done. I do not use them every day like the instructions say because you will get a little sensitivity but i highly recommend if you want white teeth

crest white strips are my go to whitener,  how easy, just apply and you can continue whatever you are doing, the whitestrips stay applied better then other brands, 

I bought this product at a local Festival store about 2 months ago. When attemnpted to use the strips the backing would not come off the as I pulled the actual treated strip. The backing and strip were then impossible to seperate.

These things really work! Pricey, but worth it if you've got coffee stains you can't seem to get off with any other tooth past or whitening mouth wash. They definitely provide noticeable whitening. Very satisfied.

This product worked well in some spots. But after a few days in other spots it started to wear off and need new treatments to make said spots white again! Over all very satisfied with the product. The spotting issue would be my only complaint!

I seriously only had to use the a couple times to see dramatic results! They work so good and haven't made my teeth sensitive. I use these around 1 or 2 every two weeks just to keep my teeth white and from staining from coffee and food.

I did notice some whitening with this product but was skeptical of using it too often or for two long in case it made my teeth sensitive. I'm not sure that it would, maybe I'm just a bit paranoid because teeth are important.