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    GlossaryVasoconstriction

    narrowing of blood vessels due to muscle contraction

    Vasoconstriction is the narrowing of blood vessels due to the contraction of the muscular wall of the vessels, particularly the large arteries and small arterioles. This process reduces blood flow to certain areas of the body, which can help conserve heat or redirect blood to essential organs. For professionals, it's important to note that vasoconstriction is regulated by the autonomic nervous system and can be influenced by various factors, including temperature, stress, and certain medications.

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      community Is it Ritalin? (23 F)

      in Question  8 upvotes 5 years ago
      A user suspects Ritalin is causing hair loss due to vasoconstriction and is considering trying Ginkgo Biloba after already taking a multivitamin and hair supplement. Another user mentions experiencing hair shedding with Vyvanse and Dexedrine.

      community Does drinking coffee offset the effects of Minoxidil?

      in Minoxidil  16 upvotes 1 year ago
      The conversation discusses whether drinking coffee affects the hair growth benefits of Minoxidil, with one user mentioning that Minoxidil's vasodilation is stronger than caffeine's vasoconstriction, and another sharing personal experience of better hair growth after quitting caffeine while on Minoxidil.

      community Topical caffeine is a common ingredient in formulas to prevent hair loss and to induce hair regrowth. (What’s your take on this?)

      in Treatment  11 upvotes 2 years ago
      The conversation discusses whether topical caffeine is effective for hair loss, with some users questioning its role due to its vasoconstrictive and vasodilative properties, while another suggests that temporary vasoconstriction might be beneficial by promoting angiogenesis. Specific treatments mentioned include caffeine shampoo, which one user believes is ineffective.

      community On the big 6 but very slow , needs acceleration

      in Is this regrowth?  30 upvotes 2 weeks ago
      The user is using a hair regrowth protocol including dutasteride, topical and oral minoxidil, dermarolling, ketoconazole shampoo, and tretinoin, but is experiencing slow progress and seeks advice for faster regrowth. Suggestions include quitting smoking, adjusting the regimen, and considering additional treatments like topical finasteride or RU58841.