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    Feely's Avatar
    Feely Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Nov 28, 2010, 08:10 PM
    Hydroquinone usp
    How long (days) does hydroquinone usp take to work?
    beautifulskin's Avatar
    beautifulskin Posts: 143, Reputation: 5
    Junior Member
    		  
    #2

    Nov 28, 2010, 10:38 PM

    You should see it work very quickly provided that you use it with exfoliants like peels or tretinoin.
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