Frequent hair colouring can cause significant hair damage, scalp irritation, and hair thinning due to harsh chemicals. It is ...

Hair dyes can be harmful to the hair and body as they can cause hair breakage, scalp irritation, hair loss, and other damage.

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.

"There are particular reactions and interactions between the chemicals within them that make these dyes work on the hair," Oxley says. "The pH (alkaline) of these products is particular to their ...

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 ...

A new lawsuit claims that a hairstylist developed bladder cancer from working with a dye chemical for decades ... There are tens of thousands of reactions of this type used in organic chemistry. This ...

buildup that’s accumulated on the scalp can create a barrier between your hair and the hair dye. So, once the color is applied, it can lead to inconsistencies in the coverage, and make the hair ...