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    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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      community Could coffee contribute to hair loss?

      in Research/Science  4 upvotes 4 years ago
      Coffee may negatively impact hair health due to its vasoconstrictor effects, potential to increase DHT, and interference with nutrient absorption. There is no strong clinical evidence linking caffeine to hair loss or regrowth in humans, but moderation is advised.

      community Why can't you drink caffeine after PRP?

      in Treatment  10 upvotes 4 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 2 years 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  12 upvotes 3 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 Any adderall / vyvanse users here?

      in Chat  1 upvotes 3 months ago
      Adderall and Vyvanse may contribute to hair loss by stressing the dopamine system and increasing cortisol levels. Users discuss potential treatments like Minoxidil, finasteride, and RU58841 for managing hair loss.

      community 13 months TOPICAL ONLY progress! (Diffuse thinner)

      in Update  552 upvotes 6 months ago
      The conversation is about a user's progress in treating diffuse hair thinning using a topical regimen including finasteride, minoxidil, ketoconazole, microneedling, saw palmetto, collagen, and vitamins, along with lifestyle changes. The user plans to switch from topical to oral finasteride for potentially better results.

      community 6 months on minoxidil shedding again

      in Update  265 upvotes 3 months ago
      A user experienced hair shedding after six months of using topical minoxidil and is considering adding finasteride to their routine. Many suggest that minoxidil alone is insufficient for stopping hair loss and recommend combining it with finasteride or dutasteride for better results.

      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 2 years of dut, 1 year of loss 24m

      in Progress Pictures  526 upvotes 4 months ago
      The user experienced hair regrowth with dutasteride but later lost progress despite using minoxidil foam and dermastamping. Suggestions included reducing dermastamping frequency, conducting blood tests, and considering oral minoxidil or different brands of dutasteride.

      community Topical Minoxidil since April 2025. Finasteride since Sept 2025. Bald spot has gotten larger in area size and more noticeable in recent months. Trying to be patient but situation doesn’t seem to be resolving

      in Minoxidil  8 upvotes 8 months ago
      The user has been using topical Minoxidil since April 2025 and Finasteride since September 2025, but their bald spot has worsened. They are considering switching to oral Minoxidil and have been advised to be patient, see a dermatologist, and possibly try additional treatments like derma rolling.

      community On the big 6 but very slow , needs acceleration

      in Is this regrowth?  30 upvotes 1 year 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.

      community Forgotten 'Total Revival' Stack

      in Research/Science  42 upvotes 1 year ago
      Cyclosporine A is discussed as a powerful hair growth stimulant, potentially more effective than minoxidil, but concerns about safety and side effects, including cancer risk, limit its use. The conversation highlights the need for further research and experimentation with topical application, despite its risks.

      community Lowering dose of Oral Minoxidil?

      in Minoxidil  108 upvotes 1 year ago
      The user plans to lower their oral minoxidil dose from 5 mg to 2.5 mg to reduce side effects like puffiness and hypertrichosis, while also using finasteride and accutane. They are considering caffeine serums for puffiness and discussing dietary changes or switching to topical minoxidil to address bloating.

      community Does drinking coffee have any effect on hairloss?

      in Research/Science  5 upvotes 5 years ago
      Coffee's effect on hair loss is debated, with some suggesting it may exacerbate hair loss due to vasoconstriction, while others believe it could have positive effects. Topical caffeine might be beneficial, but ingesting it could potentially inhibit vitamin D receptors.

      community I hate hairloss to my core, Fuck this shit

      in Update  185 upvotes 5 months ago
      The user is frustrated with hair loss, having switched from topical minoxidil and finasteride to dutasteride and oral minoxidil without seeing improvements. They are considering a hair transplant and are advised to continue the current treatment and explore therapy or lifestyle changes.

      community Brotzu lotion update

      in Update  89 upvotes 8 years ago
      A new hair loss lotion by Dr. Brotzu, expected to regrow up to 5 years of lost hair, is set to be released by Fidia Farmaceutici. It claims to work like minoxidil and finasteride without side effects, but skepticism exists due to its classification as a cosmetic product.

      community 75 days on Oral Min & Oral Fin Retrograde Alopecia

      in Progress Pictures  57 upvotes 1 month ago
      A user shared their 75-day progress using oral minoxidil, finasteride, ketoconazole shampoo, and dermastamping for retrograde alopecia, reporting significant improvement and increased body hair without side effects. They also discussed quitting smoking and the potential correlation between early beard growth and male pattern baldness.

      community Why is no one talking about coffee and TE/hairloss?

      in Treatment 6 months ago
      The conversation discusses hair loss and its potential link to caffeine consumption, with the original poster experiencing increased shedding after consuming more coffee. They mention being a non-responder to finasteride and plan to reduce coffee intake, while others suggest various factors like stress, physical exertion, and medication changes could also contribute to hair loss.

      community 10months on minoxidil as an “ok responder”

      in Progress Pictures  205 upvotes 9 months ago
      The user added topical minoxidil to their finasteride regimen, resulting in healthier hair and some regrowth, especially after quitting nicotine. They experienced minimal shedding and noted improvements in hairline density, finding the treatment mostly preventative.

      community Switching from Topical to Oral Minoxidil.

      in Minoxidil  397 upvotes 11 months ago
      Switching from topical to oral minoxidil for hair loss, with plans to use it alongside dutasteride. Users report mixed experiences, including increased body hair, potential heart-related side effects, and varying hair regrowth.