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Old 05-05-2013, 05:48 PM   #3
CurlyCutie1394's Avatar
Join Date: Jun 2012
Posts: 346

Going darker doesn't require bleach to achieve but if you use permanent dye then there is a chemical in it meant to lift the cuticle so the dye can fully penetrate. Permanent dye can cause damage but not as much as bleaching and since you going darker you dnt have to worry about it coming out brassy.
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