But that’s not all. Traditional hair dyes are known to degrade ... can inhibit colour absorption. Stick with natural shampoos and biodegradable products, to make the most out of your hair ...

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Background: Finding alternative hair dyes for individuals allergic to para-phenylenediamine (PPD) has been difficult. Newer permanent and demipermanent hair dyes that have replaced PPD with para ...

This is perhaps why Bleach London’s range of at-home products is so comprehensively thought ... creating a definitive permanent range that works for all ages and hair types, cementing our position as ...

Of the 28 patients allergic to PPD who were seen from October 2006 through October 2010, 16 (57.1%) tested negative to all of the other ... the new PTDS-based hair-dye products; none of these ...