By SJWJanuary 17, 2007 • Fact checked by Dumb Little Man As the article says, I would not make this a daily ritual. However, if you have a date or an interview this is a quick & cheap was to brighten up before leaving the house and making a lousy impression. The secret to this inexpensive home whitening method is malic acid, which acts as an astringent to remove surface discoloration. Combined
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