Is teeth whitening bad for the enamel or cause sensitivity of teeth?

I would like to do it but don't need any more tooth sensitivity!
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It all depends on what you use and how you use it. For instance, if you use even natural home remedies for teeth whitening such as lemon, it can be bad for your enamel. There also can be many pains that can occur to your teeth when using things such as whitening strips. Some of my friends who have used the Crest strips have experienced tooth pains. I found an excellent article on Hydrogen Peroxide Teeth Whitening that has really can in handy for many, I've found it to be really valuable if your interested in safely whitening your teeth but do not want to pay an arm and leg for it.
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