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    Glossary Hair Growth Cycle

    process where hair follicles undergo growth, transition, and rest phases

    The Hair Growth Cycle, also known as Hair Follicle Cycling, consists of three main phases: anagen (growth phase), catagen (transitional phase), and telogen (resting phase). During the anagen phase, hair actively grows from the follicle, which can last several years. The catagen phase is a short period where growth stops, and the hair follicle shrinks. Finally, in the telogen phase, the hair rests before eventually falling out, making way for new hair to begin the cycle again. Understanding these phases is crucial for diagnosing and treating hair loss conditions like alopecia.

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    Research 10 of 1000+

    1. Resting no more: re‐defining telogen, the maintenance stage of the hair growth cycle Biological Reviews · 2014 · 120 citations
    2. Role of macrophages in collagen resorption during hair growth cycle Journal of Ultrastructure Research · 1969 · 119 citations
    3. Hair Growth Cycle Affects Hair Follicle Destruction by Ruby Laser Pulses Journal of Investigative Dermatology · 1998 · 112 citations
    4. Exogen, Shedding Phase of the Hair Growth Cycle: Characterization of a Mouse Model Journal of Investigative Dermatology · 2002 · 107 citations
    5. Integrative and Mechanistic Approach to the Hair Growth Cycle and Hair Loss Journal of Clinical Medicine · 2023 · 104 citations
    6. Growth factors and cytokines in hair follicle development and cycling: recent insights from animal models and the potentials for clinical therapy Molecular Medicine Today · 1996 · 100 citations
    7. GROWTH FACTORS IN HAIR ORGAN DEVELOPMENT AND THE HAIR GROWTH CYCLE Dermatologic Clinics · 1996 · 90 citations
    8. Prolactin Signaling Influences the Timing Mechanism of the Hair Follicle: Analysis of Hair Growth Cycles in Prolactin Receptor Knockout Mice* Endocrinology · 2001 · 73 citations
    9. Improving stable isotopic interpretations made from human hair through reduction of growth cycle error American Journal of Biological Anthropology · 2011 · 72 citations
    10. Stress and the Hair Growth Cycle: Cortisol-Induced Hair Growth Disruption. PubMed · 2016 · 69 citations
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    Community 10 of 1000+

    1. Scalp hydration's surprising link to hair growth cycle regulation Reddit · 3 May 2026
    2. Circadian rhythm disruption and its potential impact on hair growth cycles Reddit · 10 May 2026
    3. Regrowth After Minoxidil: How to Restore Natural Hair Cycle? Community · 16 Dec 2025
    4. Has anyone here tried topical synthetic prostaglandins (Bimatoprost, Latanoprost, cetirizine) to stimulate hair growth? Reddit · 15 Aug 2024
    5. Odd Hair Growth (Possibly More Than Genetics?) Reddit · 2 Jul 2024
    6. JW Pharmaceutical shows superiority of 'JW0061' in hair growth over existing treatments in US Reddit · 21 May 2024
    7. Does periodic shedding make long hair with finasteride impossible? Reddit · 2 Apr 2026
    8. Hair continuing to recede while on Fin/Min +Dermaroller Reddit · 20 Feb 2020
    9. How long does hair actually take to recover from a shed? Reddit · 17 Aug 2026
    10. Do you have short but thick hair that won't grow past a certain lenght? Reddit · 15 Aug 2026
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    Learn 10 of 61

    1. KY19382 Experimental compound that activates hair-growth signals, tested only in animals
    2. Stem Cell Factor
    3. SCUBE3 Signalling protein made in the hair follicle
    4. Bimatoprost Prostaglandin eye drop used for glaucoma and eyelash growth
    5. Alopecia Areata autoimmune disorder causing patchy hair loss
    6. Follistatin Protein that blocks activin, a growth-regulating signal
    7. Peppermint herb and oil thought to stimulate skin and hair
    8. Adenosine Molecule the body uses for energy, used as a cosmetic hair-lotion ingredient
    9. Procyanidin Plant polyphenol found in apples and grape seeds
    10. Vitamin D Vitamin made in the skin from sunlight, also taken as a supplement
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