Posted by a reviewer on Amazon

No tooth sensitivity using this product so far

Posted by a reviewer on Amazon

Isnt sensitive to your teeth in the least

Posted by a reviewer on Amazon

It doesnt create any uncomfortable sensitivity which others have

Posted by a reviewer on Amazon

The first time the gel was so thin that it barely stuck to my teeth and i almost always forgot that i even needed to rinse it off

Posted by a reviewer on Amazon

However with the latest purchase the gel was so sticky and thick that i couldnt even talk with it on my teeth

Posted by a reviewer on Amazon

In fact his front teeth were so dark that in pictures it looked like he was missing three teeth

Posted by a reviewer on Amazon

I thought i would try the pen just to feel that i was doing something about whitening my teeth though i was sure given the price and ease of use that it would probably not work very well

Posted by a reviewer on Amazon

I purchased this item after reading several great reviews