If your teeth are sensitive you can use crest whitening strips, these strips are the best for sensitive teeth. In some cases, teeth whitening may increase the level of discomfort you feel on teeth that are already sensitive. If you are concerned about sensitivity, euro white recommends to you, try Crest 3D White Whitestrips Gentle routine for teeth sensitive to whitening. These strips are the best teeth whitening strips to help your teeth whiten back.