ever since i started to use this whitening crest mouth wash i feel like my teeth r more sensitive...?

why is this? and is there a way that i could whitten my teeth without ruining the enamel on them? like would brushing with floride tooth paste help?
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Just as everyone else is saying, the inner layer of your teeth below the enamel is called dentin and is made of hundreds of thousands of tubules and the peroxide affects this area of your teeth to make them more sensitive. There are several options to decrease the sensitivity. 1) Don't use the mouthwash as frequent (alternate with a non-whitening rinse) 2) use a toothpaste with fluoride in it (Sensodyne is best) and if you leave the paste in at night while sleeping (don't rinse) it'll work even better 3) take ibuprofen or other pain medication while using it... (I wouldn't do this though, it's just recommended while using bleaching trays or strips) Personally, I'd use a store bought whitening system like Crest Whitestrips or any other brand and just deal with the pain for 2 weeks than using the mouth rinse and having the pain for as long as you use it Don't worry, you're not ruining the enamel on your teeth either... whitening works because the peroxide acts as an "oxidizer" and just lifts the stains from the enamel layer of your teeth (kind of like detergent lifting stains from your shirts) and the enamel is left unharmed
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