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Types of Hair Dye and Their Mechanisms of Action

School of Pharmaceutical Sciences, University of São Paulo, 05508-000 São Paulo, Brazil
Author to whom correspondence should be addressed.
Academic Editor: Enzo Berardesca
Cosmetics 2015, 2(2), 110-126;
Received: 18 February 2015 / Revised: 31 March 2015 / Accepted: 2 April 2015 / Published: 22 April 2015
Hair color change by dye application is a common procedure among women. Hair dyes are classified, according to color resistance, into temporary, semipermanent, demipermanent and permanent. The first two are based on molecules which are already colored. Temporary dyes act through dye deposition on cuticles, but semipermanent may penetrate a little into the cortex and so the color resists up to six washes. Demipermanent and permanent dyes are based on color precursors, called oxidation dyes, and the final shade is developed by their interactions with an oxidizing agent, but they differ from the alkalizing agent used. In oxidation systems, there is an intense diffusion of the molecules into the cortex, what promotes a longer color resistance. Dyes and color precursors present differences related to chromophore groups, hair fiber affinity, water solubility, and photo stability. The aim of this review is to discuss the differences among hair dye products available in the market and their action mechanisms, molecular structures, application methods, and some aspects of formulations. View Full-Text
Keywords: hair; dye; temporary; semipermanent; permanent; action mechanism hair; dye; temporary; semipermanent; permanent; action mechanism
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MDPI and ACS Style

Da França, S.A.; Dario, M.F.; Esteves, V.B.; Baby, A.R.; Velasco, M.V.R. Types of Hair Dye and Their Mechanisms of Action. Cosmetics 2015, 2, 110-126.

AMA Style

Da França SA, Dario MF, Esteves VB, Baby AR, Velasco MVR. Types of Hair Dye and Their Mechanisms of Action. Cosmetics. 2015; 2(2):110-126.

Chicago/Turabian Style

Da França, Simone A., Michelli F. Dario, Victoria B. Esteves, André R. Baby, and Maria V.R. Velasco. 2015. "Types of Hair Dye and Their Mechanisms of Action" Cosmetics 2, no. 2: 110-126.

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