14 citations
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February 1982 in “American Journal of Clinical Nutrition” This study observed that Nigerians with lower serum albumin levels had a significantly reduced hair epilation force, suggesting that hair pluckability might indicate protein depletion rather than energy depletion.
In this hospital-based observational study involving 30 participants, researchers found no statistically significant difference in the force needed to pluck anagen versus telogen hair in the frontal and occipital scalp regions of women with female pattern hair loss.
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.
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.
3 citations
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May 1980 in “American Journal of Nursing” Scalp tourniquets did not significantly prevent hair loss from chemotherapy.