The Secrets of Beautiful Hair: Why Is It Flexible and Elastic?

    July 2019 in “ Cosmetics ”
    Mikako Ezure, Noriyuki Tanji, Yukari Nishita … Takahiro Osumi
    Studysummary This study identified a unique concentric double-layered structure in both Japanese and Caucasian SHINAYAKA hair, associated with improved flexibility and elasticity, and developed a succinic acid treatment to enhance these properties.
    Automatically generated from the study's abstract, not written by a person, and not a review of the full paper. Not medical advice or a treatment recommendation. Read the original study, and consult a qualified healthcare professional before changing treatment. Full disclaimer
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    Research cited in this study 5

    1. Stiffness of Human Hair Correlates with the Fractions of Cortical Cell Types Cosmetics · 2019
    2. Changes in Structure and Geometric Properties of Human Hair by Aging International Journal of Cosmetic Science · 2010
    3. Cortical Cell Types and Intermediate Filament Arrangements Correlate with Fiber Curvature in Japanese Human Hair Journal of structural biology · 2008
    4. Structural Analysis of Human Hair Single Fibers by Scanning Microbeam SAXS Journal of Structural Biology · 2006
    5. Physical Properties of Human Hair: Evaluation of Bending Stress by Measuring the Major and Minor Axis of Human Hair Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi · 2002