After only 2 uses I noticed a whiter smile. Im axious to see how much it improves with each use. The upper strip stays in place perfectly, no slip, and its not messy..My only complaint is the bottom strip. It needs to be longer. I have had some trouble with the lower strip staying in place and not sliding around. Overall tho, great product and is totally worth the price!

I used to be long time smoker and am still a coffee drinker so my teeth are not as white as I would like for them to be. But after using this product just once, I noticed a huge difference. I had noticed myself smiling more, and so did others around me. They couldn't quite put their fingers on it, but knew SOMETHING was different about me. it makes me feel so much better about myself, with just a hint of mystery.

For the price these whitening strips are very good and after trying them for a few days the difference in the color of my teeth was definitely noticeable. I have worn the strips for an hour at a time and gone about my daily business. When it comes to taking the strips of its a bit difficult to do so and this part is where i got to taste the whitening ingredients which was not very pleasant. If you could make it easier to remove the strips after the treatment it would be brilliant.

Although it states it will not work on porcelain crowns it actually did on mine! One of my front teeth is a porcelain crown and I got it before I became a heavy smoker and cola drinker. It yellowed along with the other teeth but somehow the strips brightened it back to its original color. I have had no gum irritation or tooth sensitivity so far. The strips are easy to use, come off easily and leave no residue. I saw results immediately and am now on my fourth day and the results continue to astound me. Great product!

I have tried the strips for two weeks and so far no results at all. I have had minor sensitivity, but nothing extreme. I am so disappointed with this product, and I have no plans in buying it again. I had my braces removed, so I have been on the hunt to find a product that can whiten my smile again, and these strips are now off my list for sure.

Crest white strips, especially these, helped my teeth get whiter than ever before. A lot of people commented on how white my teeth had gotten and always asked how I did it. My reply was always "Crest White strips and crest whitening toothpaste". Crest white strips always get the job done for me when I feel like my teeth are looking a little yellow.

I never write reviews but I had to for this. I have been using my first pack for 4 days now and I can see a huge difference. I was really worried about the sensitivity because I have very very sensitive teeth, but I just had very slight sensitivity in one tooth for the first 2 days and now nothing. This product really works. My only downside is with crest as a whole... they said you get 10% off when you sign up with your email, however when I got the code and entered it, it said it wasn't valid.

I used to use the DIY teeth whitening tricks such as baking soda, peroxide, coconut oil and even the activated charcoal. I could barely notice a different and did no one seemed to notice. Withing 3 weeks of using my crest white strips I heard more than once that week how white my teeth looked. Using the strips doesn't cause a mess like my other efforts have caused. It's easy and effective. I love my 3D crest strips. They are worth every penny.

I gotta say, I was skeptical... I'd read all the reviews prior to purchasing and was still skeptical.... But I gotta tell you, I am so glad I tried these! I am a smoker and a coffee fanatic and was worried that they might not work for me - but these white strips work! I did experience some sensitivity, but I highly recommend this product! Don't think twice! If you're thinking about trying them, do it - you'll be so glad you did!

[This review was collected as part of a promotion.] I used these for the required amount of time but didn't notice much difference. My gums feel healthier after consistent use; almost feel thicker, which is kind of cool, but my teeth look basically the same. Maybe they just didn't take properly? Taste is fine, they stick well compared to the old ones I'd tried (which also didn't do much). Better quality overall than other similar products. My teeth just don't bleach I guess.