Review (5/5): *~*~*SPARKLING, SHINY TEETH!!!*~*~*
I just finished my two weeks using Crest Whitestrips. I was a little skeptical about whether it would work, but after reading the reviews I tried it. My teeth weren't really bad, but they had a bit a yellow-ish coloring and weren't the brightest. I swear I noticed a difference after 24 hours! After the first week, my teeth weren't only white, but they were also shinier. I'm so glad a spent my money & time on this whitening system!!