I was pretty excited to try this whitening pen when I got a sample courtesy of the brand. First thing that's important to note is that it needs to be twisted a lot when you first open it to get the first bit of product out. I got discouraged at first and thought that it was defective, but after a bunch of twisting it works just fine.
It freshens your breath temporarily and leaves them feeling clean. I tried it towards the end of a day when I hadn't brushed my teeth for several hours and it made them feel much cleaner and smoother (you know that freshly-brushed feel I'm talking about).
It's supposed to help prevent stains if you use it after eating blueberries or drinking coffee, red wine, etc.
These reviews are the subjective opinions of ChickAdvisor members and not of ChickAdvisor Inc.