“I have very sensitive teeth and gums and have avoided all whiteners because of it (had an excruciating experience years ago and never tried again). After reading reviews that Go Smile doesn't hurt, I tried it. It doesn't hurt! And, it works! I didn't see a shocking, glaring difference, but that's good (those blue-white teeth some people have bleached theirs to be are strange looking). My teeth got a few shades lighter, enough to notice, but not stark white. They weren't in bad shape beforehand, but they're whiter, now. I'll use these again.”
