April 2017 in “Journal of Investigative Dermatology” The hair follicle dermal sheath is essential for hair shedding and needs to communicate with the outer root sheath for normal hair growth cycles.
July 1996 in “Hair transplant forum international” The document's conclusion cannot be provided because the content is not available.
May 2022 in “Zenodo (CERN European Organization for Nuclear Research)” 
May 2026 in “Frontiers in Cell and Developmental Biology” Hair follicle organoids can help study hair biology and disorders but need improvements for wider use.
January 2017 in “UiTM Institutional Repositories (Universiti Teknologi MARA)” Hibiscus rosa-sinensis leaf extract is safe for mice at tested doses.
2 citations
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July 2012 in “BMJ” FFA can be mistaken for rosacea, requiring specific treatment for accurate diagnosis and management.
9 citations
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September 2012 in “Journal of Cosmetic Dermatology” Hair capacitance mapping effectively measures hair surface moisture changes.
August 2016 in “Journal of Investigative Dermatology” August 2018 in “Journal of the American Academy of Dermatology” August 2020 in “Research Square (Research Square)” Hair follicle stem cells may help treat strokes.
January 2024 in “Journal of cellular immunology” Hair follicle stem cells are important for maintaining healthy skin and interact with many signals.
4 citations
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June 2022 in “Clinical, cosmetic and investigational dermatology” The new SFS Scale predicts hair transplant difficulty using hair and skin types, with thick skin and coily hair being hardest to work with.
November 2023 in “Journal of Dermatological Science” A new computer tool quickly measures hair thickness differences in people with common types of hair loss.
17 citations
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July 2019 in “Lupus Science & Medicine” Plucked hair follicles can help diagnose scalp lupus.
67 citations
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February 2009 in “Journal of Dermatology” 
13 citations
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January 2019 in “Skin appendage disorders” FAPD is a possible diagnosis for hair loss in patients of color and requires multiple evaluations for accurate diagnosis.
September 2023 in “Zenodo (CERN European Organization for Nuclear Research)” 
1 citations
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January 2021 in “Journal of biological chemistry/The Journal of biological chemistry” FLCN helps control iron levels in cells.
December 2000 in “日本組織細胞化学会総会プログラムおよび抄録集” 1 citations
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September 2025 in “Viruses” Hantavirus survivors often face long-term health issues, needing ongoing care.
January 2006 in “Elsevier eBooks” The document's conclusion cannot be summarized because the content is not accessible.
January 2017 in “The American Pharmacists Association eBooks” January 2017 in “The American Pharmacists Association eBooks” July 2022 in “Zenodo (CERN European Organization for Nuclear Research)” July 2022 in “Zenodo (CERN European Organization for Nuclear Research)” 
3 citations
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September 2006 in “Hair transplant forum international” Transplanting 2,800 to 4,000 hair units closely together is a complex procedure that requires preparation.
August 2018 in “Oxford University Press eBooks” The document's conclusion cannot be provided because the document cannot be parsed.
February 2020 in “International Journal of Current Microbiology and Applied Sciences” Canine hair follicle cells show stem cell properties, aiding hair growth.
Hair movement can indicate hair quality and health.
4 citations
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March 2021 in “Postepy Dermatologii I Alergologii” High-frequency ultrasonography can be a useful tool for diagnosing different stages of alopecia areata, a type of hair loss.