If you leave them on for long enough and are consistent it really does make your teeth whiter but it'll you leave them on for too long with sensitive teeth it will hurt.

These work pretty well for a store bought whitening system. I use these when I need a boost in between my gel from the dentist. Go for the sensitive option if you have sensitive teeth!

I love the strips I wish my teeth weren't so sensitive. My hubby can use them no issue but my teeth can't handle them. I would reccomnend them again but not buy them again.

They do get the job done. But I just wish they made the strips longer for the back of your teeth. Also they hurt my teeth and make them too sensitive.

I've used this before any big even that I have and it doesn't wonders! Before proms, photo shoots, or even my wedding. If you are needing pearly whites fast this is your best bet!

These white strips work really well! If your teeth are very sensitive I would recommend using this because the ingredients won't make it too sensitive

These worked GREAT! I saw results quickly and even better, my teeth stayed white once I finished using the strips! I was so terrified the results would be short term but I was so wrong.

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.

This product plus the toothpaste has helped get rid of the tough braces stains I had growing up. If you're looking for easy whitening that doesn't take long and is effective I would recommend this product.

Okay I can't tell if these work. They seem to, but not a huge difference. Also the strips are incredibly uncomfortable and the longer you have them on, your teeth actually get sore from the whitening solution. Not worth it to me.