Bergamy-Rosa recommends shades that are one to two levels lighter than your natural color to cover budding grays. “This can ...

While mehndi enhances hair colour naturally, it may also cause dryness, allergic reactions, irritation, and texture changes.

ACDS tapped toluene-2,5-diamine sulfate for its dual nature as both an allergen and an alternative to other compounds.

If you apply the dye throughout your hair without actually ... “So, I always recommend doing a small color patch in the back of the hair near the occipital bone, just to see what the color ...

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 ...