Most of the time people dye their hair to cover their grey hair. But like anything in beauty and hair care, it is essential to test the product on your hand before you use it on your head.
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 ...
Start by choosing a medium-brown hazelnut hair dye with golden undertones. If your hair is naturally darker, consider a gentle pre-lightening treatment to bring out the warm tones; if it's lighter ...