I LOVE these! I do wear them longer than suggested. They work quick and get me a couple shades lighter. After a few weeks. They are a bit pricey. But it beats going to the dentist and buying trays to do it.

These work very very well. I could see a difference after just once use the next morning. They can make your teeth very sensitive so be careful about applying them every day. I usually take a day break between applications.

These definitely work pretty well! You can always tell if the treatment is working until the very end, so I would definitely advise using the entire set right away in the two weeks behind or whatever it says to use them.

For a low time investment — half an hour a day — I was able to lighten the shade of my teeth super easily. I used it twice a day for two weeks and that was it! Fast and affordable.

Holy grail!!! If you wanted to whiten your teeth quick, effective, and cheap this is the product for you! After just three uses I noticed a huge change in the shade of my teeth. I would recommend this to others

Leaves your teeth a little sensitive afterwards and honestly I couldn't really tell that my teeth were any whiter. Maybe try one more time to see. Probably all the coffee I drink anyways.

Like to use these occasionally because it works after awhile and doesn't irritate my gums. The only downside is it sometimes irritates my throat if I do it more than twice a week

This product does amazing at whitening. However after you leave it on your teeth for a little while you can start to taste it and it doesn't taste to good. However it does its job amazingly and I will continue to use this product.

It works! I noticed a difference while using this product as directed. Although it is rather expensive and their are cheaper alternatives that will work the same. I do recommend this one if you're willing to pay, but know that there are cheaper.

Noticeable difference in just one use. Easy application and easy removal. Doesn't cause sensitive teeth if not used a lot during a week. Would recommend to everyone wanting to get clear teeth without the risk of sensitive teeth.