I have used these before and they have always worked. However, this last purchase does not work. I was send old out of dated ones that have no stick to them at all. I ended up throwing them out. What a waste of money. I will never purchase from these people again

[This review was collected as part of a promotion.] Crest sent me Crest 3D whitening strips to review. I used them 7 times over the course of 10 days. I was reluctant to believe I would see any results within seven days, especially since my teeth weren’t particularly yellow or gray. However, I was pleasantly surprised. I definitely noticed the difference. You can see in my before picture at the top, my teeth looked fine, but over seven treatments later there was a big difference. There was no taste, no smell, and most importantly no tooth sensitivity. I’ve tried whitening treatments over the years and there are times when my teeth hurt so much that I quit. There was absolutely zero issues with these. I’m very happy and will be using these again. @influenster #complimentary @crest #3DWhite

I have bought so many other brands of white strips and none of them seem to work for me till one of my friend said to try Crest White Strips because it worked for her. So I decided to buy them and it was well worth it. Easy to put on and only a few min. I wear it as I take the train in NYC on my way to work. Took less then a month and time flies when your not focusing on it. I have to say it was well worth it and worth every penny. Give it a try thats what I did and I never looked back at another brand of white strips.

I really love these white strips they work fast and leave me with minimal to no tooth sensitivity.. It is cheaper than actually going to a dentist and getting them done. I have recommended this to all my friends and family because it works so well.. Worth the price last a pretty good amount of time.

I have tried many home remedies for teeth whitening for years until I finally came upon crest 3d whitestrips. I saw a very noticeable difference within one week. My gums are also sensitive and they did not effect them negatively. Amazing product and I plan on purchasing again.

[This review was collected as part of a promotion.] Really like how fast you can see the results when using these whitening strips. After 3 uses my teeth look brighter, without sensitivity. They’re comfortable to wear especially the fact that they must be worn for an hour. The strips are wide enough for those with bigger teeth so there’s a Pugh surface area. Overall, these will be my go to strips when it’s time to buy another pack.

Big improvement from the old slippery strips I tried years ago. I love being able to sip water during wearing these. I've read it's safe to use 2 of these kits per year; if so, does that mean waiting 6 months, or is it safe to use them consecutively? Thank you very much.

I have very sensitive teeth and was reluctant to but these whitening strips. I've tried so many other whitening products that said they would not cause sensitivity, but I also got no reults. After I used these 3d White strips I have really white teeth and absolutely NO sensitivity!!! I've gotten so many compliments on how nice my teeth look and I've just been smiling a lot more!! Love this product, definitely worth the price!!

I have tried other whitening treatments that did not work at all, but Crest whitening strips absolutly whitened my teeth in only 7 days. The intructions said to use it for 20 days but I stopped after 9 days since my teeth were already so white. I will use it again in a few months to keep them white. Very happy with results.By the way I am 68 years old

Knowing you can drink coffee or tea and no guilt feeling about the drink staining your pearl whites... 3-d crest say your back. THE feeling oh ahhh my teeth are only to be white and glowing for the holidays and everyday. feels nice someone has our backs and not our packets ... The product is amazing for the price. if you like comments about your smile this iz a product for you :)