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    Glossary Prolactin

    hormone from the pituitary gland that stimulates milk production

    Prolactin, also known as PRL or luteotropic hormone, is a hormone produced by the pituitary gland. It plays a crucial role in lactation by stimulating milk production in mammals. Additionally, prolactin has over 300 functions in the body, including roles in metabolism, immune system regulation, and development of the reproductive system. Elevated levels of prolactin can lead to conditions such as hyperprolactinemia, which can affect menstrual cycles and fertility.

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    Research 10 of 1000+

    1. Human Scalp Hair Follicles Are Both a Target and a Source of Prolactin, which Serves as an Autocrine and/or Paracrine Promoter of Apoptosis-Driven Hair Follicle Regression American Journal of Pathology · 2006 · 128 citations
    2. Prolactin and the Skin: A Dermatological Perspective on an Ancient Pleiotropic Peptide Hormone Journal of Investigative Dermatology · 2008 · 98 citations
    3. Prolactin and Its Receptor Are Expressed in Murine Hair Follicle Epithelium, Show Hair Cycle-Dependent Expression, and Induce Catagen American Journal of Pathology · 2003 · 91 citations
    4. Prolactin Signaling Influences the Timing Mechanism of the Hair Follicle: Analysis of Hair Growth Cycles in Prolactin Receptor Knockout Mice* Endocrinology · 2001 · 73 citations
    5. Prolactin—a novel neuroendocrine regulator of human keratin expression<i>in situ</i> The FASEB Journal · 2010 · 64 citations
    6. The role of prolactin in the reactivation of hair follicles in relation to moulting in cashmere goats 1994 · 62 citations
    7. Growth of secondary hair follicles of the Cashmere goat in vitro and their response to prolactin and melatonin. PubMed · 1994 · 56 citations
    8. Prolactin delays hair regrowth in mice Journal of Endocrinology · 2006 · 53 citations
    9. Prolactin: an emerging force along the cutaneous–endocrine axis Trends in Endocrinology and Metabolism · 2010 · 51 citations
    10. Effect of constant-release melatonin implants and prolonged exposure to a long day photoperiod on prolactin secretion and hair growth in mouflon (Ovis gmelini musimon) Domestic animal endocrinology · 2004 · 51 citations
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    Community 10 of 83

    1. Article on the newest baldness cure(prolactin drug) Reddit · 24 Sept 2026
    2. Crazy monkey hair regrowth with Prolactin targeted drug Reddit · 22 Sept 2026
    3. Prolactin and E2 high after finasteride Reddit · 1 Sept 2026
    4. Prolactin the Cause of Hair Loss? ABS-201 the Cure? Reddit · 16 Jul 2026
    5. Result of my cortisol, prolactin, testosterone, ACTH blood test, Reddit · 2 Nov 2025
    6. Ray Peat: Testosterone Isn’t the Culprit, Prolactin and Cortisol Drive Hair Loss (2016) Reddit · 23 Oct 2025
    7. is the reason why people are in denial about prolactin causing hair loss is the fact that prolactin is one of the hardest things to lower? Reddit · 5 Mar 2024
    8. If inhibiting DHT can cause Prolactin to increase then is the opposite also true? Reddit · 7 Jan 2024
    9. Is anyone taking both boron and p5p to lower SHBG and Prolactin respectively? What are you experience on this? Reddit · 29 Dec 2022
    10. Has anyone with high prolactin taken meds to lower it and seen hair regrowth? Reddit · 20 Jan 2026
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    Learn 1 of 2

    1. HMI-115 Experimental antibody that blocks the prolactin receptor
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