The Science of Color: How Chemical Dyeing Processes Transform Hair Structure

In this study, researchers investigated how different hair dye processes affect hair structure, finding that oxidative dyes disrupt hair more than semi-permanent dyes, and emerging technologies could help maintain hair health while achieving desired color.

This study examined how different hair dye processes affect hair structure at a molecular level, finding that oxidative dyes increase keratin porosity more than non-oxidative dyes, and highlighted emerging technology aimed at reducing hair damage while preserving color quality.

This review covers hair dye formulations, their mechanisms, and potential applications, but reports no new findings; the authors highlight the process of oxidative dyeing and repairing damaged hair.

This study reviewed the principles and classifications of hair dyes, identifying significant differences between oxidative, temporary non-oxidative, and semi-permanent non-oxidative dyes in terms of duration, application methods, and potential risks, which could help improve safety and convenience in hair dye use.

This study analyzed how oxidative hair dye leaches from pigmented and nonpigmented hair during wash cycles, finding that melanin influences the dye deposition and leaching processes.