Bests & Worsts Reviews from Amazon

Just being real, my teeth were embarassingly dingy. A kind of mixture of yellow and gray with a hint of brown. Years of smoking and drinking/eating coffee products left them pretty terrible. I tried many different options to make them whiter to no avail. Whitening toothpaste, mouthwash, charcoal, hydrogen peroxide, nothing worked and the last time I tried a whitenening tray it made my teeth hurt so bad I wanted to cry. So, when I came across this pen for people with sensitive teeth, I just thought: "Why not?". I had no idea just how effective this would be. By the third use of it, the browish color was gone. By the sixth useage, even my family was shocked at how much my teeth had changed in such a short time. Now on the eighth use of it, my teeth are actually two-toned and it's very noticeable at the right angle in the mirror. The front of my teeth are like 5-6 shades whiter than the back of them, where I can't apply the gel. Fortunately, nobody will see back there. But, it's the biggest evidence of just how fast this product works after only 4 days of using it. I've struggled with terribly stained teeth for years. I thank the Father in Heaven for finding this product. The only downside I would say this product has is the fact that it makes your throat hurt. But, it's not so severe that it's unbearable. I will definitely endure the slight discomfort for a few weeks, because by that time, my teeth might be as white as the page this review is written on.