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    Did you mean Anagen/Telogen Ratio?
    Glossary Anagen/Telogen Ratio

    measure of hair follicles in growth vs. resting phases

    The Anagen/Telogen Ratio is a measure used to assess hair growth and health by comparing the number of hair follicles in the anagen (growth) phase to those in the telogen (resting) phase. A higher ratio indicates a greater proportion of actively growing hair, which is typically a sign of healthy hair growth, while a lower ratio may suggest hair loss or a disruption in the hair growth cycle.

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    1. A 2% Oleosome-FGF-2 Fusion Extract Scalp Serum Improves Photo-trichogramDerived Hair Density, Anagen/Telogen Ratio, Hair Shaft Thickness, and Scalp Barrier Parameters in Women with Shedding-Prone Hair: A Randomized, SingleBlind, Placebo-Controlled Pilot Study International Journal of Clinical & Experimental Dermatology · 2026
    2. Comparison of Hair Follicle Density and Anagen:Telogen Ratio between Topical Minoxidil Alone and Its Combination with Platelet-Rich Plasma Exosomes in a Mice Model of Androgenetic Alopecia Malaysian Journal of Medicine and Health Sciences · 2026
    3. Effects of platelet-rich plasma application on hair follicle count, telogen/anagen ratio, and miniaturized hair ratio in patients with androgenic alopecia: alone or in combination with other treatments Journal of Dermatological Treatment · 2025
    4. A proprietary herbal extract against hair loss in androgenetic alopecia and telogen effluvium: a placebo-controlled, single-blind, clinical-instrumental study Acta dermatovenerologica Alpina, Pannonica et Adriatica (Tiskana izd.) · 2018 · 1 citations
    5. Recovery Effects of Oral Supplementation with Polar Lipid-Rich Wheat Extracts on Acute Telogen Effluvium: A Randomized Double-Blind Placebo-Controlled Study Clinical Cosmetic and Investigational Dermatology · 2025
    6. Promotion of anagen, increased hair density and reduction of hair fall in a clinical setting following identification of FGF5-inhibiting compounds via a novel 2-stage process Clinical, Cosmetic and Investigational Dermatology · 2017 · 27 citations
    7. Telogen effluvium Clinical and Experimental Dermatology · 2002 · 144 citations
    8. Postpartum telogen effluvium Journal of the European Academy of Dermatology and Venereology · 2015 · 7 citations
    9. A stain for plucked anagen hairs Journal of The American Academy of Dermatology · 1979 · 17 citations
    10. Finasteride increases anagen hair in men with androgenetic alopecia British Journal of Dermatology · 2000 · 129 citations
    11. Amaranthus Extract Promotes Healthy Follicles and Anagen Hair Density-A Randomized Placebo-Controlled, Double-Blinded Study. PubMed · 2025
    12. LB1010 Ashwagandha-derived exosome-like nanoparticles significantly promote human hair growth ex vivo and in vivo by stimulating the production of the anagen promoting growth factor VEGF-A Journal of Investigative Dermatology · 2024
    13. Effects of the RV3466F lotion on female telogen effluvium: Results from a 16 week, multi-centric, controlled, randomized trial Journal of The American Academy of Dermatology · 2019
    14. Efficacy and Safety of a Drinkable Nutraceutical in Premenopausal Women with Telogen Effluvium: A 6-Month, Randomized, Multicenter, Double-Blind, Placebo-Controlled Study Dermatology and Therapy · 2025
    15. A Novel, Drinkable Food Supplement Formulation Reduces Hair Shedding and Increases the Percentage of Anagen Scalp Hair Follicles in Females with Hair Loss Journal of Clinical Medicine · 2025
    16. TrichoScan: A Novel Tool For The Analysis of Hair Growth In Vivo Journal of Investigative Dermatology Symposium Proceedings · 2003 · 70 citations
    17. Effect of Adiantum Capillus veneris Linn on an Animal Model of Testosterone-Induced Hair Loss. PubMed · 2014 · 13 citations
    18. A study of the effects of topical minoxidil in the treatment of androgenic alopecia using phototrichograms British Journal of Dermatology · 1989
    19. Khảo sát tác dụng kích thích mọc lông của cao ethanol toàn phần chiết xuất từ bột lá Tía tô (Perilla frutescens L. (Britt)) trên chuột nhắt Swiss albino rụng lông do testosteron Y HOC TP HO CHI MINH · 2025
    20. A comparative study of efficacy and safety of 5% topical minoxidil with platelet rich plasma versus platelet rich plasma as a monotherapy in male patients with androgenetic alopecia IP Indian journal of clinical and experimental dermatology · 2018
    21. Effect of minoxidil formulations on human scalp skin xenotransplants on SCID mice – a novel pre‐clinical in vivo assay for androgenetic alopecia research Experimental Dermatology · 2022
    22. A comparison of vertical versus transverse sections in the evaluation of alopecia biopsy specimens Journal of The American Academy of Dermatology · 2005 · 56 citations
    23. Hair growth promoting effect of white wax and policosanol from white wax on the mouse model of testosterone-induced hair loss Biomedicine & Pharmacotherapy · 2017 · 27 citations
    24. Lonely Hair Sign: Not Specific for Frontal Fibrosing Alopecia Archives of Dermatology · 2012 · 4 citations
    25. The Potential of Resveratrol-Rich Peanut Callus Extract in Promoting Hair Growth and Preventing Hair Loss Cosmetics · 2024
    26. Alopecia areata incognito: an elusive disease International Journal of Dermatology · 2023
    27. Histopathologic Evaluation of Alopecias The American Journal of Dermatopathology · 2006 · 90 citations
    28. Effect of<i>Cuscuta reflexa</i>Roxb on androgen-induced alopecia Journal of Cosmetic Dermatology · 2008 · 63 citations
    29. Hair diameter diversity: a clinical sign reflecting the follicle miniaturization. PubMed · 2001 · 41 citations
    30. TrichoScan: combining epiluminescence microscopy with digital image analysis for the measurement of hair growth in vivo. PubMed · 2001 · 31 citations