These work super well and are very easy to use. I like to put my clear retainers over my teeth when these are on to keep them in place even better. The only issue is that my teeth are kind of sensitive and after using these it makes them more sensitive. But, crest also makes sensitive relief strips that I can use after those two relieve my sensitivity.

I have used the 3D crest Whitestrips a handful of times. They are by far the best over the counter product out there for whitening. They are so easy to use, simply putting them on for 30 minutes at a time. Easy to do if you have a commute or while watching TV. The results are phenomenal. Why waste hundreds of dollars on ZOOM when you can get equal results and save money?! I highly recommend anyone who wants a brighter smile to try the Crest Whitestrips!!

Not comfortable at all. The strips slide around so you have to make sure you're not really doing much, and makes me roam at the mouth a bit (lol) always quit before using consistently because of the discomfort so I'm not sure how well they actually work

My favorite teeth whitening product for my sensitive teeth - seems to effectively reduce coffee & tea discoloration without pain or too much effort. I use daily for about three weeks in a row anytime I notice that my smile isn't as bright as i would like !

Purchased the original Crest Whitestrips some years ago and was pleased. I am not a smoker, coffee or tea drinker and only experienced minimal whitening with the 3D Pro Effect strips. Not remotely close to a professional whitening.Frankly one could probably achieve the same results from a whitening toothpaste!

Over the years I have tried countless whitening products, but was always left disappointed. I had always been a little skeptical about Crest Whitening Strips, kind of like one of those "too good to be true" kind of things. Until one evening when I thought I would just give the whitening thing one last try. After the first two nights I was astonished by the results. Not only did I notice the immense difference in my smile, so did my friends and colleagues. I have never felt more confident in my smile. I might even dare to say it is absolutely flawless. Crest Whitening Strips not only turned my average white teeth into an impeccable smile, but it also gave me the confidence to walk around everyday flaunt my smile. In my book, you can't put a price tag on feeling beautiful and confident. Even if you had to, I'd say these are a steal.

These work very well. They are super easy to use and quick as well! Some people have sensitivity when using these whitenening strips, but I did not. The only time I had sensitivity is when I did two treatments in one day (and it hurt), so I recommend sticking to one treatment each day. Pretty expensive but worth it.

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!

I have used the 3D toothpaste faithfully for years and always receive compliments on my white teeth. When I feel like I need an extra aid for whitening, I splurge on the 3D white strips. I think they're really effective but can leave your gums sore. I usually put Vaseline in my gums before applying the white strips and it seems to eliminate the issue.

I have 15 years working as a dentist in a pediatric setting. I use this product exclusively for myself and recommend it to children over the age of 15. I love this product and have not personally experienced sensitivity. Patients and parents love the cost!