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    Did you mean Vasoconstrictors?
    GlossaryVasoconstrictors

    substances that narrow blood vessels, reducing blood flow

    Vasoconstrictors are substances that cause blood vessels to narrow, reducing blood flow and increasing blood pressure. They can be naturally occurring in the body, like adrenaline, or used in medications to treat conditions such as low blood pressure or to reduce blood flow during surgery.

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      learn Caffeine

      the stimulant you know and love can be used topically to stimulate hair

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      community Why can't you drink caffeine after PRP?

      in Treatment  10 upvotes 2 years ago
      The conversation discusses avoiding caffeine after Platelet-Rich Plasma (PRP) treatment for hair loss because caffeine is a vasoconstrictor, which can reduce blood flow and hinder the healing process that PRP aims to promote.

      community Does drinking coffee offset the effects of Minoxidil?

      in Minoxidil  16 upvotes 5 months 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 1 year 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 Quit vaping/smoking = 80% less loss

      in Research/Science  235 upvotes 6 months 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.