I'm whitening right now! I've been using the Crest 3D White toothpaste, 3D White rinse, and the 3D White advanced tooth strips every day. Results have been pretty gradual, and I have 3 more days to go to complete the 2 weeks. I have not had any sensitivity at all, which is wonderful. For me, it has been a dramatic change (I took "before" photos and photos every 2 days since, and I see a BIG change overall) but nobody has been blinded or anything! Several people have asked if I'm wearing different makeup or something, and a couple of people have commented that I'm more "smiley" than usual, and my brother said, "something seems different - did you cut your hair?", but nobody has asked if I'm whitening. Ops, give the Crest strips a try!