The medical term for hair graying is canities. Hair turns gray (or white) when your hair follicles stop creating melanin. Melanin is the substance that gives your skin and hair color.
Stronger or more persistent reactions may require a prescription from your healthcare provider. Some people who color their hair have an allergic reaction to the dye. The most common reaction to hair ...
Instead of sulfates, I have been hunting for ingredients that will prolong color, repair damage, reinstate some shine, and, of course, keep your hair clean. Different hair has different needs ...
If you encounter a problem, talk to your healthcare provider about exposure risk. Non-Toxic Hair Dye Vegetable-based hair dyes are available, which may be an option for people who are concerned about ...
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 ...