New Insights From Data Analysis of 12 Global Clinical Studies on Hair Shedding

    August 2026 in “ International Journal of Cosmetic Science ”
    Yingjie Li, Shengnan Lin, Sarah Paterson … Jianing N. Sun
    Studysummary This study found that shed hairs from the root significantly outnumber broken hairs during hair fall, particularly in Chinese male and female participants, with shedding predominantly occurring during washing.
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    Research cited in this study 14

    1. Characteristic Findings by Phototrichogram in Southern Chinese Women with Female Pattern Hair Loss Skin Research and Technology · 2019
    2. Comparison of Quality of Life in Patients with Androgenetic Alopecia and Alopecia Areata Anais Brasileiros De Dermatologia · 2018
    3. Phototrichogram Analysis of Normal Scalp Hair Characteristics with Aging European Journal of Dermatology · 2013
    4. Protease Activity, Localization, and Inhibition in the Human Hair Follicle International Journal of Cosmetic Science · 2013
    5. Partial Proteasome Inhibitors Induce Hair Follicle Growth by Stabilizing Beta-Catenin Stem cells · 2013
    6. Factors Associated With Female Pattern Hair Loss And Its Prevalence In Taiwanese Women: A Community-Based Survey Journal of The American Academy of Dermatology · 2012
    7. Prevalence of Androgenetic Alopecia in China: A Community-Based Study in Six Cities British Journal of Dermatology · 2010
    8. From Telogen to Exogen: Mechanisms Underlying Formation and Subsequent Loss of the Hair Club Fiber Journal of Investigative Dermatology · 2009
    9. Standardizing the 60-Second Hair Count Archives of Dermatology · 2008
    10. Prevalence of Male and Female Pattern Hair Loss in Maryborough Journal of Investigative Dermatology Symposium Proceedings · 2005
    11. Evaluation and Treatment of Male and Female Pattern Hair Loss Journal of The American Academy of Dermatology · 2004
    12. Exogen, Shedding Phase of the Hair Growth Cycle: Characterization of a Mouse Model Journal of Investigative Dermatology · 2002
    13. The Prevalence and Types of Androgenetic Alopecia in Korean Men and Women British Journal of Dermatology · 2001
    14. Hair Density, Hair Diameter, and the Prevalence of Female Pattern Hair Loss British Journal of Dermatology · 2001