Question

 Is this bad for you and why/how?

Answer That is terrible for your teeth! Whitening your teeth can take away your enamel. Thats why on the box it'll say leave the strips on for 10 minutes or only 20. You do not exceed this time! Trust me,... Read More »
http://answers.yahoo.com//question/index?qid=20120826082102AAgfxCU


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