Main Article Content
Hair dyes are one of the most widely used cosmetic products utilised by men and women available in the form of conditioners, lotions, powders to enhance their appearance by changing the colour. Modern Hair dyes are present in the form or oxidative and non-oxidative dyes and they were further classified on the basis of duration of retention over hair are: permanent, temporary, semi-permanent and demi-permanent . Around 90% of marketed products are of oxidising nature. This article provides insight on various aspects of hair dyes starting from classification, difference between each category, chemicals used in permanent dyes, mechanism involved in colouring, potential hazards or risk associated with these and regulatory aspects . Although different chemicals are involved in the preparation but para-phenylene diamine being a main ingredient is major cause of dermatitis and other allergic reaction .
How to Cite
Oxidative Hair dyes, Composition, Mechanism, Para-phenylenediamine
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