These are great
These have better adhesion than the name brand. The film is slightly thicker too. So they both stay on and stay in place much better than the big name brand. There is plenty of whitening product on the strips so it easily distributes between my teeth. It was a little difficult for me to enunciate my words while wearing, but I was able to speak and have people understand what I said.<br /><br />Yes they do whiten my teeth, just not as fast as the name brand. But I didn't have any tooth sensitivity after using these. With the name brand I can only use them a few times then I have to stop use because my teeth hurt but I didn't have that problem with these.  I like them.
Rating: 5 stars