Influence of different cosmetic vehicles in mechanical and physical properties of hair treated with oxidative hair dyes

Authors

  • Elaine Cabral Serrão University of São Paulo; School of Pharmaceutical Sciences; Department of Pharmacy
  • Robson Miranda da Gama Santo Amaro University; School of Pharmacy
  • Michelli Ferrera Dario University of São Paulo; School of Pharmaceutical Sciences; Department of Pharmacy
  • Simone Aparecida da França-Stefoni University of São Paulo; School of Pharmaceutical Sciences; Department of Pharmacy
  • Valcinir Bedin BWS Graduate Institute of São Paulo
  • André Rolim Baby University of São Paulo; School of Pharmaceutical Sciences; Department of Pharmacy
  • Maria Valéria Robles Velasco University of São Paulo; School of Pharmaceutical Sciences; Department of Pharmacy

DOI:

https://doi.org/10.1590/s2175-97902018000117218

Keywords:

Hair dyes/analyse, Cosmetic technique/utilization, Hair/chemistry, Hair color, Hair/strength, Hair/bright.

Abstract

Hair care products play a significant role in the cosmetic market and aim at improving hair brightness, breakage resistance, and color change. In this study, we analyzed the possibility of the formulation of oxidative dyes in different vehicles impacting the hair’s both mechanical and physical properties. Light brown and light blond dyes were prepared using eight different vehicles. Among these, four vehicles were emulsifying agents and four gelling agents. Each formulation was applied to two types of virgin Caucasian hair (light blond and dark brown). Physical, chemical, and organoleptic properties of each formulation were assessed, as well as changes in hair parameters after oxidative dyeing, such as staining intensity, brightness, and breaking strength. The parameters of color and brightness differed in some formulations, but the hair type also responded differently. Brightness parameter was increased in dark brown hair colored with both dyes, whereas light blond hair showed the opposite result. Regarding the breaking strength, there were no significant differences between the two kinds of tresses. Cosmetic formulations should adjust the consumer desired effects (e.g. color change) in order to present minimal drawbacks (e.g. decrease of hair brightness and strength). Thus, the study of different vehicles is important when establishing the best oxidative dye formulation.

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Published

2018-06-07

Issue

Section

Articles

How to Cite

Influence of different cosmetic vehicles in mechanical and physical properties of hair treated with oxidative hair dyes. (2018). Brazilian Journal of Pharmaceutical Sciences, 54(1), e17218. https://doi.org/10.1590/s2175-97902018000117218