Changes in Structure and Geometric Properties of Human Hair by Aging

    July 2010 in “ International Journal of Cosmetic Science ”
    Shinobu Nagase, Yoshio Kajiura, Akira Mamada … Yoshihito Amemiya
    Studysummary This study found that hair luster decreases with age in Japanese females, primarily due to an irregular increase in fiber curvature which affects hair alignment.
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    Research cited in this study 8

    1. Investigation by Imaging Mass Spectrometry of Biomarker Candidates for Aging in the Hair Cortex PloS one · 2011
    2. Cortical Cell Types and Intermediate Filament Arrangements Correlate with Fiber Curvature in Japanese Human Hair Journal of structural biology · 2008
    3. Characterization of Curved Hair of Japanese Women with Reference to Internal Structures and Amino Acid Composition PubMed · 2008
    4. Characteristic Features of Japanese Women's Hair With Aging and Hair Loss Journal of Dermatological Science · 2006
    5. Structural Analysis of Human Hair Single Fibers by Scanning Microbeam SAXS Journal of Structural Biology · 2006
    6. Characterization of Hair Lipid Images by Argon Sputter Etching-Scanning Electron Microscopy Lipids · 2006
    7. Free Internal Lipids in Hair From Pre- and Post-Menopausal Women International Journal of Cosmetic Science · 2005
    8. Hair Density, Hair Diameter, and the Prevalence of Female Pattern Hair Loss British Journal of Dermatology · 2001