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    Glossary Hair Bulb

    rounded base of the hair follicle where growth starts

    The hair bulb is the rounded, bulbous structure at the base of the hair follicle, located in the dermis layer of the skin. It is the site where hair growth begins, containing actively dividing cells that produce the hair shaft and the inner root sheath. The hair bulb also houses the dermal papilla, which supplies nutrients and signals necessary for hair growth.

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    Community 10 of 1000+

    1. GFM Gel - High concentration topical gel of Mimicking Growth Factors (GFm), a complex of polypeptides that mimic the action of endogenous growth factors and promote physiological hair regrowth. Helps strengthen the hair bulb and redensify the hair. Reddit · 18 May 2025
    2. Losing hair without the white bulb, Tressless GPT's Response. Do you guys agree? Reddit · 14 Nov 2024
    3. Read about a recent study on the effects of Agerarin on ex-vivo hair bulbs and... Reddit · 20 Jun 2026
    4. Taurine supplements work for hair growth? Reddit · 23 Apr 2024
    5. Has Finasteride stopped working after a year of good results? Unsure of what to do! Reddit · 29 Apr 2021
    6. Hair and normal skin created from human pluripotent stem cells for the first time Reddit · 5 Jun 2020
    7. A practical checklist for comparing hair transplant clinics before deciding Community · 28 Sept 2026
    8. Question: how do you tell when two hair-loss stories are actually comparable? Reddit · 28 Sept 2026
    9. Positive experience with Dr. K C Dharam Kumar — Laser hair reduction Community · 28 Sept 2026
    10. Anyone had a full head of hair but slight thinning at top front first noticed at age 36 that didn’t get worse with age? Reddit · 27 Sept 2026
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    Research 10 of 1000+

    1. Effects of epidermal growth factor, fibroblast growth factor, minoxidil and hydrocortisone on growth kinetics in human hair bulb papilla cells and root sheath fibroblasts cultured in vitro Archives of Dermatological Research · 1987 · 58 citations
    2. Premature Graying as a Consequence of Compromised Antioxidant Activity in Hair Bulb Melanocytes and Their Precursors PLOS ONE · 2014 · 46 citations
    3. Cellular Activity in the Dermis Surrounding the Hair Bulb in Alopecia Areata Journal of Cutaneous Pathology · 1975 · 25 citations
    4. Poly(γ-Glutamic Acid)/Chitosan Hydrogel Nanoparticles For Effective Preservation And Delivery Of Fermented Herbal Extract For Enlarging Hair Bulb And Enhancing Hair Growth International Journal of Nanomedicine · 2019 · 22 citations
    5. In vitro effects of testosterone, dihydrotestosterone and estradiol on cell growth of human hair bulb papilla cells and hair root sheath fibroblasts. Acta Dermato Venereologica · 1990 · 22 citations
    6. Activation of the OVOL1-OVOL2 Axis in the Hair Bulb and in Pilomatricoma American Journal of Pathology · 2016 · 20 citations
    7. The Contributory Roles of Th17 Lymphocyte and Cytotoxic T Lymphocyte at the Hair Bulge Region as Well as the Hair Bulb Area in the Chronic Alopecia Areata Patients 2017 · 18 citations
    8. Epidermal growth factor and fibroblast growth factor accelerate proliferation of human hair bulb papilla cells and root sheath tibroblasts cultured in vitro British Journal of Dermatology · 1987 · 9 citations
    9. Effects of testosterone, dihydrotestosterone and estradiol on the growth behavior of cultured hair bulb papilla cells and root sheath fibroblasts 1989 · 5 citations
    10. “Miliacin encapsulated by polar lipids stimulates cell proliferation in hair bulb and improves telogen effluvium in women” Journal of Cosmetic Dermatology · 2019 · 3 citations
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    Learn 3 of 61

    1. Hair Multiplication extract, clone, and reinsert your own hair cells
    2. Hair Fibers cosmetic product that temporarily makes hair appear thicker
    3. Hair Transplant Surgery that moves hair follicles from the back of the scalp to thinning areas
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