whitens without causing tooth sensitivity
I used the stain out swab for 2 minutes and then the whitener swab for 1 minute and then brushed as usual with great results; my teeth were nice and white with no sensitivity I had gotten from other whiteners in the past.  I highly recommend this product especially if you have teeth sensitivity to most whiteners. Wish they would lower the price though as expensive compared to other whiteners.
Rating: 4 stars