Review (1/5): Buyer Beware!
I have never had sensitive teeth until I used this product. The 'Product Description' says the following:
• Shorter wear time - 30 minutes, once a day
• Proven faster results1 for improved compliance
• Patented water-based 9% hydrogen peroxide gel
• 84% less wear time - for two-week treatment
• Superior whitening, avoids sensitivity
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.