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Thread: Could glycerin in my haircare product trigger a false positive?
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Old Jun 21, 2011 | 10:56 am
  #11  
AmyJo
 
Join Date: Feb 2011
Location: SEA
Posts: 90
Originally Posted by DeafBlonde
Doesn't urine contain nitrates?
My favorite hand lotions have urea in them, isn't chemistry great!
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