Listerine Whitening Pen, 0.074-Ounce Pen

As a smoker and coffee drinker, I know what it's like to wish my teeth were pearly white. Well, they may never be THAT white again, but this product definitely exceeds expectations. I first bought a pen two months ago, and after only two days' application, my teeth looked awesome -- like I'd just had them cleaned. The instructions say you can use the pen 14 days in a row, but I think I stopped after four days because I was pleased with the results (and lazy).

Two months later, I decided to try it again and see what would happen if I really did use the pen for 14 days. I'm three days in and my teeth are already sparkly. My teeth are generally very sensitive, but the pen hasn't made that worse at all -- there's no discomfort and no increased sensitivity. I love this product.

It IS a bit of false advertising to say that you can use the pen at the office and on the go. The gel looks kinda smeary and, well, gel-like on your teeth, so it's really not the...Read more

I've had this for about two weeks and probably used it around ten times. I can tell quite a difference too. It's the exact same stuff that is on the whitening strips, it's just without the strip.

I bought this pen about 9 months ago i use it about every day and still have some left.The instructions say it isn't good on dental material ,which is why i bought it.I have a chip on my front tooth that was covered 10 years ago,after being there so long it started to really get stained when i drank coffie.I have found the pen dose great,takes the stain right out.Occasionally when the stains seem worse i alternate arm and hammer tooth whitener.which I also bought at the same time and still have some left.
Both these products cause the stains to be gone,and do some what increase whitening.