These strips really do the trick especially if used regularly. I've used them many times but always leave my teeth feeling very sensitive and at times I can't get past the taste. But for whiter teeth they do work.

I use these once a week and always get compliments on my teeth. Is a great product for touching up here and there. I would recommend having a strong gag reflex though since it tastes a little funny.

I have used this for years. I have been using these whiting sets since I was 16 and stole them from my mother. I think they work great, however if you have sensitive teeth. DO NOT USE. It will cause you to rip them off.

I used the 30 day kit approximately 15 years ago and to this day people ask me how I get my teeth so white. They've been glowing since although I will probably be buying this kit again within the year to reboot that glow. It reallllllyy works.

If I could choose ten stars, I would have!! I use this kit once a year and everyone constantly compliments me on my smile! Some have even took it as far as asking have I gotten my teeth done! Lol

My husband and I keep a box of these around the house at all times. We'll whiten our teeth every once in a while as it does increase sensitivity, which is pretty unavoidable with a product like this. They work great, though. 

I use these white strips about every 3 months and my teeth are still super white! I drink coffee and every morning and I get a ton of compliments on how white my teeth are

These work so well! I was amazed with the result when I first tried them. I saw the difference in 3 days and the result lasts for almost a year which is amazing. I had a lot of people asking me about my teeth. The difference is very noticeable.

It works like a charm and the results last a long time. I have used them for years. To improve? Make them cheaper and where my teeth done get sensitive.

Crest is the only brand of whitening strips I will use. Work great and can really notice a difference even after a few days of using! I drink coffee everyday and these really help get away those stains on my teeth