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    Did you mean Follicular Infundibulum?
    Glossary Follicular Infundibulum

    upper part of hair follicle where sebum exits

    The follicular infundibulum is the upper part of a hair follicle, extending from the skin's surface down to the point where the sebaceous (oil) gland opens into the follicle. This region is crucial for the passage of sebum and dead skin cells to the skin's surface, and its blockage can lead to conditions like acne.

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    Research 10 of 1000+

    1. Activity of type 1 5α-reductase is greater in the follicular infrainfundibulum compared with the epidermis British Journal of Dermatology · 1997 · 12 citations
    2. Expression of the L-Fucose Moiety on Infrainfundibular Follicular Keratinocytes of Terminal Follicles, Its Decreased Expression on Vellus and Indeterminate Follicles of Androgenetic Alopecia, and Re-Expression in Drug-Induced Hair Regrowth Journal of Investigative Dermatology · 1992 · 9 citations
    3. Follicular Hybrid Cyst With Isthmic-Catagen, Pilomatrical, and Syringocystadenoma Papilliferum Components American Journal of Dermatopathology · 2012 · 2 citations
    4. Epithelial keratin and filaggrin expression in seborrheic keratosis: evaluation based on histopathological classification International Journal of Dermatology · 2013 · 12 citations
    5. Generalized trichoepitheliomas with alopecia and myasthenia gravis: Clinicopathologic and immunohistochemical study and comparison with classic and desmoplastic trichoepithelioma Journal of the American Academy of Dermatology · 1986 · 54 citations
    6. El sistema español de autonomías territoriales: apuntes para un diagnóstico Journal of the American Academy of Dermatology · 2009
    7. ACNE Dermatologic Clinics · 1997 · 58 citations
    8. Human hair follicle: reservoir function and selective targeting British Journal of Dermatology · 2011 · 97 citations
    9. Hair removal using an Nd: YAG laser system. Dermatologic Clinics · 1999 · 31 citations
    10. Pilomatricoma can differentiate not only towards hair matrix and hair cortex, but also follicular infundibulum, outer root sheath and hair bulge Experimental Dermatology · 2009 · 18 citations
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    Community 10 of 56

    1. Do the more newer gen topical retinoids e.g. tazarotene outperform tretinoin in inducing follicular sulfotransferase activity? Reddit · 29 Jul 2026
    2. Pelage Pharmaceuticals’ PP405 and its Impact on Follicular Regeneration to be Presented at the American Academy of Dermatology (AAD) Annual Meeting 2026 28th march Reddit · 26 Mar 2026
    3. Pelage Pharmaceuticals’ PP405 and its Impact on Follicular Regeneration to be Presented at the American Academy of Dermatology (AAD) Annual Meeting 2026 Reddit · 18 Mar 2026
    4. Minoxidil Skin Delivery from Nanoemulsion Formulations Containing Eucalyptol or Oleic Acid: Enhanced Diffusivity and Follicular Targeting Reddit · 25 Dec 2024
    5. Information regarding Follicusan DP? Reddit · 22 Oct 2023
    6. Targeted Follicular Finasteride Delivery: A Low-Systemic Strategy Reddit · 28 Mar 2026
    7. What is the deal with "longitudinal partial follicular unit transplantation" Reddit · 21 Dec 2019
    8. What is the deal with "longitudinal partial follicular unit transplantation" Reddit · 13 Dec 2019
    9. Can single hairs follicules be able to produce two hairs once again with treatment? Never saw a study about that. Reddit · 19 Jun 2024
    10. Pelage PP405: New Hair Growth from Inactive Follicular Units - Phase 2a results at AAD 2026 Reddit · 29 Mar 2026
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