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    Did you mean Histamine?
    GlossaryHistamine

    chemical causing allergy symptoms and regulating gut functions

    Histamine is a chemical produced by the immune system that plays a crucial role in allergic reactions and regulating physiological functions in the gut. When released, it causes symptoms like itching, swelling, and redness by increasing the permeability of blood vessels, allowing immune cells to access affected tissues more easily.

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      learn Cetirizine

      popular antihistamine showing promise for hair loss as an anti-inflammatory and prostaglandin inhibitor

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      community Cetirizine (Zyrtec), to help with inflammation.

      in Product  3 upvotes 2 months ago
      The user experiences an itchy scalp and finds relief using shampoo and Zyrtec, which helps with inflammation. They are unsure if the issue is related to histamines or seborrheic dermatitis.

      community antihistamine for scalp inflammation??

      in Chat  6 upvotes 2 months ago
      Cetirizine 10mg daily reduced hair shedding by 50% and lessened scalp itchiness. The user is considering long-term use for scalp inflammation and hair loss.

      community Low level chronic allergies and hair loss

      in Research/Science  6 upvotes 10 months ago
      Hair loss can be influenced by chronic low-level allergies, and treatments like fexofenadine or topical cetirizine may help with regrowth. The user avoids finasteride, dutasteride, and minoxidil, and has tried Regenera Activa and PRF sessions.

      community Is my hair improving after seven months on topical treatment?

      in Is this regrowth?  326 upvotes 11 months ago
      A user has been using Hims topical finasteride and minoxidil for seven months, along with micro needling, and is asking if there's an improvement in their hairline. Responses vary, with some seeing progress and others criticizing the photo quality for comparison, but no side effects were reported.

      community Antihistamines stop my hair loss

      in Treatment  24 upvotes 2 years ago
      A user found that antihistamines stop their hair loss and related symptoms, but they experience side effects like sedation and chest pain. They are seeking alternative solutions or topical antihistamines to avoid systemic side effects.