Does nicotine have an effect on hair despite using finasteride?
    Research/Science 3/31/2026

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    In this question or advice post, the primary subjects mentioned are
    💊 Finasteride (oral) 10 months
    the tone is 😐 neutral.

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    Nicotine may negatively affect hair by reducing blood flow due to its vasoconstrictor properties, but its impact might be minimal. Finasteride users are advised to avoid nicotine to prevent potential hair loss issues.
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      community Quit vaping/smoking = 80% less loss

      in Research/Science  235 upvotes 2 years ago
      Quitting vaping significantly reduced hair loss for a user who was a heavy vaper and also taking finasteride. Some participants suggest nicotine's vasoconstrictive properties may worsen hair loss, while others share personal anecdotes of hair improvement after quitting smoking or vaping.

      community This is the best time in human history to be fighting hair loss

      in Treatment  190 upvotes 3 years ago
      This conversation discusses the advancements in treatments for hair loss, including finasteride, dutasteride, minoxidil and new promising treatments such as pyrilutamide and verteporfin. Other treatments discussed were taking minoxidil orally, tretinoin to turn non-responders into responders and microneedling to further boost growth.

      community My hair stopped falling out after I quit smoking

      in Update  60 upvotes 1 year ago
      Quitting smoking led to reduced hair loss for the original poster, who also used finasteride and topical minoxidil. Other users shared mixed experiences with smoking and hair loss, with some noticing improvements after quitting and others seeing no change.

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