I'm 67 years old and used this whitening product because of an article I read in AARP's magazine that suggested ways to be appealing to your grandchildren. One of the suggestions was that you whiten your teeth. I'd been thinking about it previously so this article was the impetus I needed to buy the product. The effect is great! I plan on doing the strips every year from now on!

I'm crazy about teeth and these are the best brand and line of white strips in my opinion. I love that they really work and stay on and don't make my teeth unbearably sensitive and are comfortable to wear for the allotted time. They make my teeth so shiny bright white!!

I would rate this product as average. I do have my teeth bonded, and I find that this product makes them sensitive. Although I expect that from a whitening product, I find it leaves me with very patchy, sporadic results. Yes, it whitens, but not consistently throughout my teeth. I would use this product, but only until I found a better substitute.

Love this teeth whitening kit, although I've only purchased it once because it's kind of expensive to constantly buy them. My results after a use of them were shocking, I definitely saw a difference in my teeth in a good way. I would purchase this product more often if it wasn't so pricy for my budget!

Tastes horrible and saw minimal effects. It was something I dreaded, sort of tastes like a bleach mixture. Like actual bleach taste. If I used this consistently for a long time it might get my teeth where I want them but it's not a hassle I think is worth it.

I have been liking these strips! I don't feel like they give amazing immediate results but over repeated use I notice a difference. I have noticed sensitivity before when I use them too often so I typically use one of the 30 minute strips once every two weeks or so.

If you're in a pinch and need a quick whitening this is your product! All of the different whitefish strip treatments that Crest offers are great! Been using them for as long as I can remember while trying other brands and Crest has always been superior.

This product is really great if you have somewhere to be and you want your teeth to be whiter or as something that you do maybe just twice a year for  generally whiter teeth but I recently stopped using this product because I noticed that my toothpaste was doing a really great job of whitening my teeth and this product might not be the best for your health so I don't use it that often.

The result is really good. Even after the first application, the teeth became noticeably whiter. But! I had a very bad toothache over the next day. This is a very unpleasant sensation. I'm not ready to try it anymore. I gave the remaining whitening strips to my friend.

My teeth weren't very yellow to start with so I thought they would work relatively well as my boyfriend used them and his are very white. I finished my 20 days last night and took an after picture to compare with before using the same lighting conditions. There is no visible change, however my boyfriend thinks they're whiter. I think they're brighter and lighter but a light cream colour. My eyes are white and my teeth are yellow