Buyer Beware!
I have never had sensitive teeth until I used this product. The 'Product Description' says the following:<br /><br />• Shorter wear time - 30 minutes, once a day<br />• Proven faster results1 for improved compliance<br />• Patented water-based 9% hydrogen peroxide gel<br />• 84% less wear time - for two-week treatment<br />• Superior whitening, avoids sensitivity<br />I wore this for 30 minutes for three days and my teeth are incredibly sensitive now. It did whiten my teeth slightly, but nothing is worth risking problems with ones teeth.  I usually buy the whitening syringes from my dentist and regret that I took a chance with this.
Rating: 1 stars