[This review was collected as part of a promotion.] I absolutely love these Crest whitening strips. They are extremely easy to use and come in little individually wrapped packages per use. I noticed my teeth looking brighter after just a week and multiple shades whiter after 3 weeks. I’m a coffee and wine drinker so I definitely had some noticeable staining to get rid of. They do cause a little sensitivity - when I noticed that I started using the strips every other day and that helped a lot. I’m really impressed how much whiter my teeth look!

My oldest daughter was getting married and I wanted to whiten my teeth. I got the 3D white strips and noticed a difference in color even after just the first treatment. They were very easy to use and stayed on well during the treatment. Would recommend them to everybody!

I got the crest professional white strips as a quick fix for my dull & slightly yellow teeth. I'm a big coffee & sweet tea drinker. The product does its job, it works really well actually. BUT it makes your teeth very sensitive, when I breathed cold air it hurt my teeth, so yes it does work yes I do recommend it but be cautious, I'd recommend getting some sensodyne toothpaste as well.

[This review was collected as part of a promotion.] I received the Crest 3D Whitestrips for free from Influenster in exchange for my honest review. After using the Crest 3D Whitestrips for one week, I definitely noticed a visible improvement in the whiteness of my teeth. The color looked noticeably brighter, especially around the edges where I had the most staining. However, I did experience bad sensitivity throughout the week—mainly sharp zaps during and after the treatment. While the results were great in terms of whitening, the sensitivity was tough to deal with. If you have sensitive teeth, I’d recommend using them every other day or following up with a sensitivity toothpaste.

Half of the upper strips do not adhere. I applied each day, the same way. The lower strip adhered each time; the upper strip would not adhere more often than not. I'm on day 9 and notice no whitening whatsoever. Will probably toss the remaining strips. I'm very disappointed. My high opinion of Crest products has vanished. No, I do not recommend this product.

I have only used 6 of these so far and already my teeth are insanely more white!! I found that after only 2 uses my teeth were noticably whiter and had people commenting on them after the 3rd but also after the 3rd use I started getting sharp pains in my teeth usually around 10/15 minutes after I had taken the strips off. I had to stop using the strips for a few days and go back to them. I found that leaving a few days in between each use helped a little but the pain still occurs after every use. I also found that brushing my teeth straight after using the product can help to reduce the severity of the pain. Other than that I would definetly recommend this product to anyone who has yellow stained teeth as it's worked wonders on my own!

[This review was collected as part of a promotion.] I am very impressed with this product! After just two uses, I already see a difference. And it isn’t a fake whiteness - it makes teeth more white, but natural looking. I will definitely be using this product! I am sure after more weeks, the whitening will be even better!

I've only used maybe 5 treatments so far but I can already tell a difference. I drink coffee (a lot of it) daily and started to notice my teeth looking a little dark. I have veneers in the front and I know that these don't whiten them from their original color, but they are lightening the coffee staining. I love that they made them no-slip also, as the old version would slide all over and made it difficult to talk. These things stick on HARD and pulling them off sometimes seems like pulling off a new band aid.

[This review was collected as part of a promotion.] I received this product for free from Influenster in exchange for my honest opinion. I used these strips exactly as directed for the full 11 day period. These strips stay on really well- way better than any other strips I have tried in the past. They stay on for an hour and you can easily talk with them on your teeth. Unfortunately, I can’t say that I see a noticeable difference from using these. I also have been noticing some sensitivity in my teeth that I didn’t experience before using these strips. I am always looking for a great tooth whitening product, but I don’t think this is it for me!

[This review was collected as part of a promotion.] I’ve used these multiple times over the years and every time they’ve been super effective at whitening my teeth and keeping them white for years! They’re super easy and comfortable to use and I highly recommend them to anyone who is looking to significantly brighten up their smile. For the, price, you really cant find anything that’s going to be more effective!