Crest 3D White 2 Hour Express Whitestrips are designed to give you an almost-immediate result with minimum sensitivity. They're formulated with a 9.5% hydrogen peroxide gel and extra-sticky foam strips to help you get the boost you're looking for. They're meant to be worn, obviously, for 2 hours and each kit contains 4 treatments so you can help keep your smile bright for a whole year. Unfortunately, the comments we’ve received to date aren't completely complimentary - with most of our comments rating Crest 3D 2 Hour Express Whitestrips at 2.5–or under.
Clearly, they're created to give you almost-immediate gratification. But we've heard little result of that here at TeethWhiteningReviews.com
We have dozens of comments reporting pain and sensitivity reactions with Crest 3D White 2 Hour Express Whitestrips.
Is it available at most grocery and drug stores. It can also be found at select online retailers.
From Shannon of Ottawa, Ontario, "Not only do these not work very well at all, there is the aspect of incredible pain afterwards that should cause one to hesitate when trying this product." Generally speaking, if there is extreme sensitivity after whitening, this means the hydrogen peroxide has gone into the enmale rods to whiten intrinsic stains. We think the product works. However, our hunch is that these whitening strips are too powerful for most people to handle, so they do not stick with it.