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    Glossary Vellus Hair Density

    number of fine, short hairs per skin area

    Vellus hair density refers to the number of fine, short, and lightly pigmented hairs (vellus hairs) present per unit area of the skin. These hairs are typically less than 2 mm in length and are often found on areas of the body that are not covered by terminal hairs, such as the face and arms. For professionals, assessing vellus hair density can be important in diagnosing and understanding conditions like alopecia or hirsutism.

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    1. Hair diameter vs. hair density in male androgenetic alopecia British Journal of Dermatology · 2014
    2. Hair regrowth in male and female pattern hair loss does not involve the conversion of vellus hair to terminal hair Experimental Dermatology · 2016 · 14 citations
    3. Quantitative trichoscopic analysis of hair density in people attending tertiary care hospital – A cross-sectional study Journal of Cutaneous and Aesthetic Surgery · 2024 · 1 citations
    4. Mapping the hair density, thickness, and volume in normal and androgenetic alopecia subjects with the digital microscope JEADV Clinical Practice · 2022
    5. Normal Hair Growth in Children Pediatric Dermatology · 1987 · 57 citations
    6. Automated digital image analysis (TrichoScan<sup>®</sup>) for human hair growth analysis: Ease versus errors International Journal of Trichology · 2010 · 21 citations
    7. Clinical Study to Evaluate the Efficacy and Safety of a Hair Serum Product in Healthy Adult Male and Female Volunteers with Hair Fall Clinical, cosmetic and investigational dermatology · 2020 · 14 citations
    8. Clinical Study to Evaluate the Efficacy and Safety of a Hair Serum Product in Healthy Adult Male and Female Volunteers with Hair Fall DOAJ (DOAJ: Directory of Open Access Journals) · 2020 · 5 citations
    9. The Comparison of Trichoscopic Findings in Female Pattern Hair Loss (FPHL) and Chronic Telogen Effluvium (CTE) in Female Patients Journal of pharmaceutical research international · 2021
    10. Efficacy of Hair Mesotherapy With Biomimetic Peptides and Micronutrients in Patients With Androgenetic Alopecia: A Retrospective Observational Study Journal of Cosmetic Dermatology · 2026
    11. 15. Hair and Nails Medical & surgical dermatology · 2009
    12. Characteristic features of Japanese women's hair with aging and with progressing hair loss Journal of Dermatological Science · 2006 · 76 citations
    13. Phototrichogram Analysis of Japanese Female Subjects with Chronic Diffuse Hair Loss Journal of Investigative Dermatology Symposium Proceedings · 2003 · 25 citations
    14. Hair Counts from Normal Scalp Biopsy in Taiwan Dermatologic Surgery · 2012 · 24 citations
    15. Patient Selection, Hair Transplant Design, and Hairstyle The Journal of Dermatologic Surgery and Oncology · 1992 · 20 citations
    16. Evaluation of the safety and effectiveness of intradermal administration of QR678 Neo<sup>®</sup> hair growth factor formulation: A phase‐IV, open‐label, single‐arm multi‐ethnicity clinical trial Journal of Cosmetic Dermatology · 2022 · 2 citations
    17. Is TrichoScan a new diagnostic method for diffuse hair loss? Turkish Journal of Medical Sciences · 2014 · 2 citations
    18. Female Pattern Hair Loss in Female and Male: A Quantitative Trichoscopic Analysis in Chinese Han Patients Frontiers in Medicine · 2021 · 1 citations
    19. Acute Hair Loss 3 Years after Bone Marrow Transplant Skin appendage disorders · 2019 · 1 citations
    20. CASE SERIES: TREATING HAIR LOSS WITH THE NON-INVASIVE JET PEEL TECHNOLOGY Vestnik dermatologii i venerologii · 2026
    21. Does low-energy fractional carbon dioxide laser therapy improve hair regrowth in female-pattern hair loss? Egyptian Journal of Dermatology and Venerology · 2024
    22. Correction to “Divergent progression pathways in male androgenetic alopecia and female pattern hair loss: Trichoscopic perspectives” Journal of cosmetic dermatology · 2024
    23. “TRICHOASSIST” Trichogram Hair and Scalp Feature Extraction and Analysis Using Image Processing Lecture notes in networks and systems · 2024
    24. Recipient Area Hair Direction and Angle in Hair Transplanting Dermatologic Surgery · 2004
    25. Clinicopathological insights into the phenotypic variation of autosomal recessive hypotrichosis/wooly hair by c.736T>A LIPH mutation Journal of dermatological science · 2016
    26. A marine protein-based dietary supplement for subclinical hair thinning/loss: Results of a multisite, double-blind, placebo-controlled clinical trial International Journal of Trichology · 2015 · 27 citations
    27. Comparison Between Trichoscopic and Histopathological Evaluations of Hair Parameters Clinical, Cosmetic and Investigational Dermatology · 2022 · 2 citations
    28. Efficacy of intramuscular injections of biotin and dexpanthenol in the treatment of diffuse hair loss: A randomized, double‐blind controlled study comparing two brands Dermatologic Therapy · 2022 · 1 citations
    29. Examination of hair growth parameters in androgenetic alopecia in women using TrichoScan 2010
    30. The use of low-level light for hair growth: Part I Journal of cosmetic and laser therapy · 2009 · 90 citations