4 citations
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March 2015 in “Skin Research and Technology” This study suggests that using trichotillometry to establish the normal range of shear strain for different hair types could inform diagnostic and treatment decisions for various hair conditions.
November 2025 in “Nature Communications” This study used a 3D live imaging system to map cell dynamics in human hair follicles, revealing patterns of cell movement and division that help explain hair fiber extrusion during hair growth.
5 citations
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March 2001 in “Journal of biomechanics” This study found that anagen hairs require less force to be extracted than telogen hairs in an in vitro pig skin model, indicating different anchorage mechanisms.
5 citations
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December 2015 in “Dermatologic Therapy” In this study, topical phenylephrine significantly reduced hair shedding and increased the force needed to pluck hair in women undergoing cosmetic procedures, suggesting its potential utility for traction alopecia.
April 2016 in “Journal of Investigative Dermatology” This study found that topical phenylephrine, an α1-AR agonist, significantly reduced hair shedding and increased epilation force threshold in women experiencing traction alopecia during cosmetic procedures.