I received this product for review through a program with Crest. Over a course of SEVEN days, I tried out the Crest 3D White Luxe Sensitivity Toothpaste. My teeth were less sensitive than before. I'm able to eat hot and cold foods without pain! I was disappointed with the whitening results of this product. I've heard of great things about the whitening products from Crest and was expecting to see my teeth whiten a shade or two. I only noticed a tad in whiteness of my teeth. I used this toothpaste in conjunction with the Crest 3D White Vivid Toothbrush. I found the bristles to be decent and enjoyed the feeling of the "polishing cups." However, I found the tongue cleaner on the backside of the toothbrush to be useless. It didn't clean my tongue at all!