Peroxide solutions can cause sensitivity in teeth. The teeth whitening companies are trying to find ways to improve this.ONe of the things that they are doing, is to add a calcium solution to the carbomer peroxide solution and lower the amount of peroxide previously used. Using it straight to rinse with can cause alot of sensitivity. It is interesting that cs helped with this. Thanks to the people that answered my question on cs ,salt c and lyme disease
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