7 citations
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January 2013 in “Supportive care in cancer” In this study, cross-section trichometry was found to be a precise method for measuring hair loss in chemotherapy patients, but marking the measurement site on the scalp is not always necessary.
January 2026 in “Journal of Cosmetic Dermatology” In this 10-patient exploratory study, the researchers found that topical application of 4-aminopyridine 5% combined with microneedling did not improve hair density or quality in men with androgenetic alopecia, suggesting limited efficacy in this context despite promising results in animal wound models.
2 citations
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July 2008 in “Dermatologic Surgery” This study suggests that a prototype device may accurately measure hair quantity, diameter, and density in balding patients, potentially aiding in diagnostic assessments, though formal clinical studies are needed to confirm its effectiveness.
29 citations
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March 2008 in “Dermatologic Surgery” This study developed a prototype device that suggests potential for diagnosing changes in hair quantity, diameter, and density, though formal clinical studies are needed to confirm these findings.
September 2023 in “Journal of the American Academy of Dermatology” This study, examining perceptible hair density changes in androgenetic alopecia patients, found that dermatologists could accurately detect hair loss at a lower threshold than previously noted, specifically at a 22.66% relative density difference, challenging assumptions about their predictive accuracy based solely on clinical examination.