Methods: A retrospective analysis of patch-test results since October 2006 was done and yielded 28 patients allergic to PPD who were also tested with a hair dye series. From January 2004 through ...
So if you’re going to go grey, how best to do it? Celebrity hair stylist Michael Douglas admits that ... In the UK, it’s estimated we spend around £300 million pounds a year on hair colourants and ...