Protein Loss in Human Hair from Combination Straightening and Coloring Treatments

    July 2015 in “ Journal of cosmetic dermatology ”
    Simone Aparecida da França-Stefoni, Michelli Ferrera Dario, Tânia Cristina Sá-Dias … Maria Valéria Robles Velasco
    Studysummary This study observed that combining hair dyeing with sodium hydroxide relaxers drastically increased protein loss in Caucasian virgin dark brown hair, while ammonium thioglycolate or guanidine hydroxide relaxers caused less damage.
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    Research cited in this study 6

    1. An Overview of Chemical Straightening of Human Hair: Technical Aspects, Potential Risks to Hair Fiber and Health, and Legal Issues International Journal of Cosmetic Science · 2013
    2. Protective Effect of Conditioning Agents on Afro-Ethnic Hair Chemically Treated with Thioglycolate-Based Straightening Emulsion Journal of cosmetic dermatology · 2008
    3. Hair Breakage in Normal and Weathered Hair: Focus on the Black Patient ˜The œjournal of investigative dermatology. Symposium proceedings/˜The œJournal of investigative dermatology symposium proceedings · 2007
    4. Relaxing And Straightening Of Afro-Ethnic Hair: Historical Overview Journal of cosmetic dermatology · 2007
    5. Hair Coloring, Permanent Styling, and Hair Structure Journal of cosmetic dermatology · 2003
    6. A Nationwide Outbreak of Alopecia Associated With the Use of a Hair-Relaxing Formulation Archives of dermatology · 2000