Dirty Mouth?  Whiten It Up!
After getting a 5% whitener from my doctor, I found that the results were not as significant as I was looking for.  He warned that the higher percentages might cause sensitivity.  I've found that there is a little of that, but nothing too bad and you wear there all night and wake up with sparkling teeth.  Aside from the results, the price of these are really what sends these to the next level - half the price of my dentist for the same product.
Rating: 5 stars