It is amazing. I used this like a week before my wedding, and everybody asked how I did it!! Lol in my wedding pictures my teeth are really white. I'd highly recommend this to everyone who is in need of teeth whitening process.

I have used this product for years. I love how easy it is! My teeth stay white and after one or two times using this a week they are bright white. Would highly recommend. My teeth are also very sensitive and I have no problems.

I think the amount of money i've spent on these I could've gotten my teeth professionally whitened but my teeth are sensitive so I haven't ever been able to use them for the full 7 days as is recommended. I usually do 1 or 2 days but they do work

I found them on sale 5 years ago and I am addicted to them. I figured out that I can reuse them when I need to save money. I get compliments all the time.

My favorite whitening strips. I always use these before summer starts to make sure I have a nice white smile. They take twenty days to do but the results are totally worth it. Changes the color of my teeth significantly.

I've always been self-conscious about a less than bright white smile, but with Crest 3D White Whitestrips Professional Effects, my worries can be laid to rest! They are fast, affordable, and most of all, effective!

Be warned they whiten your teeth no problem like they are supposed to. However if it's your first time whitening you can experience pain and strong sensitivity. Sometimes I can't sleep I'm in too much pain.

I LOVE these strips. They make my teeth whiter after just one use. I don't get super sensitive to them and if you keep it up you really see a big difference

I've used crest white strips for several years and they work great! Not a soda drinker but a daily coffee drinker, and crest white strips help to take years of stains off your teeth!

These are an excellent option for a quick fix. That being said they don't whiten your molar teeth. I prefer to use these when I'm busy and need a quick fix on the go.