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    Did you mean Poisson's ratio?
    GlossaryPoisson's ratio

    measure of material's perpendicular deformation to applied force

    Poisson's ratio is a measure of how much a material deforms in directions perpendicular to the direction of applied force. When you stretch a rubber band, for example, it not only gets longer but also gets thinner. Poisson's ratio quantifies this thinning effect. For most materials, this ratio is between 0 and 0.5, where a value of 0.5 means the material volume remains constant during deformation.

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      community Massive study on finasteride side effects released

      in Finasteride/Dutasteride  83 upvotes 1 year ago
      The release of a study on 5a-reductase inhibitors (finasteride and dutasteride) which showed an increased risk of depression, dementia, decreased libido, and reduced semen load as potential side effects; discussion around other forms of hair loss treatments such as topical minoxidil, RU58841, or opting to accept baldness; and advice to consider professional help for deeper issues related to hair loss.

      community 4 month update - nuclear stack, 42m

      in Progress Pictures  257 upvotes 2 months ago
      A 42-year-old user shared a 4-month update on their hair regrowth using a "nuclear stack" including oral and topical minoxidil, dutasteride, RU58841, micro-needling, keto shampoo, saw palmetto, biotin, multivitamins, scalp massages, and inversion table. They reported significant progress with minimal side effects and plan to continue the routine.

      community 1 year regime. Stabilizing a bit

      in Progress Pictures  81 upvotes 5 months ago
      A 30-year-old man using minoxidil for hair loss is seeing stabilization but no significant regrowth. He is hesitant about finasteride due to potential side effects and is seeking alternative methods to promote hair growth.

      community 4+ Years on Dut: Update and AMA

      in Update  113 upvotes 1 year ago
      Hair loss treatments, such as Dutasteride, Minoxidil, and Finasteride. Advice is given to give the medications time to work and to consider a Hair Transplant in order to fill any gaps caused by continuing hair loss.

      community switched from topical to oral minoxidil (topical mixed with water) 3 months ago and aside from being much easier i’ve also had much more density overall. My results aren’t even finished yet!

      in Progress Pictures 2 years ago
      This user discussed using oral minoxidil as a hair loss treatment, and was cautioned against mixing topical minoxidil with water and drinking it due to potential side effects and risks. Other users shared their concerns about the dangers of self-prescribing medications without consulting a doctor.

      community Finally Scalp Folliculitis-Free after 2 Decades of Suffering

      in Treatment  59 upvotes 2 weeks ago
      A 37-year-old male resolved scalp folliculitis by adopting a low-histamine diet and taking Vitamin A, Zinc, and Fish Oil, leading to better skin health and thicker hair. He warns about the potential toxicity of excessive Vitamin A intake.

      community Discussion on Finasteride and life.

      in Chat  162 upvotes 1 month ago
      Finasteride can aid hair regrowth but may cause side effects like depression and sexual dysfunction. Users discuss experiences with finasteride, minoxidil, and RU58841, highlighting varied responses and the importance of informed treatment choices.

      community 12 Months Hair Transplant Progress / 3500 Grafts (1 YEAR)

      in Transplants  1116 upvotes 5 months ago
      A user shared their 12-month progress after a 3500-graft hair transplant at Heva Clinic in Istanbul, choosing not to use minoxidil or finasteride. The results were praised, with comments noting the natural look and significant improvement.

      community Just popped my first fin, excited as hell!

      in Finasteride/Dutasteride  154 upvotes 5 months ago
      A user shared their excitement about starting finasteride for hair loss after trying various ineffective methods. Other users discussed their experiences with finasteride, including shedding phases and side effects, with one mentioning using topical finasteride and minoxidil.

      community Quit vaping/smoking = 80% less loss

      in Research/Science  235 upvotes 7 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.

      community Why don’t people just just DUT instead of FIN?

      in Finasteride/Dutasteride  48 upvotes 9 months ago
      The conversation discusses the use of dutasteride (DUT) versus finasteride (FIN) for hair loss treatment, with some users preferring DUT for its effectiveness while others choose FIN due to its approval status, better long-term data, and lower risk of side effects. Users share personal experiences with both medications, including side effects and effectiveness.

      community Bloodwork reports just came in

      in Update  23 upvotes 1 year ago
      A 21-year-old male suffering from male pattern baldness is using topical finasteride and minoxidil, and oral minoxidil. His bloodwork shows normal DHT levels and slightly high testosterone, leading to discussions about the role of DHT sensitivity in hair loss, the potential impact of finasteride on his DHT levels, and the suggestion to proceed with oral finasteride due to his high testosterone.

      community Why I deleted my YouTube channel Part I

      in Update  118 upvotes 3 years ago
      A YouTuber named Kevin, also known as Rider_Of_Roach, who deleted his YouTube channel due to personal attacks and controversy surrounding his views on hair loss treatments. He advocated for FDA-approved treatments like finasteride and minoxidil but faced backlash from those who disagreed with him. The conversation also discusses his past trolling behavior and a lawsuit he filed against a website that published false information about him. Despite some disagreements, many viewers appreciated his research-based content and hope to see him return in the future.

      community Just find a cure already, I am totally done

      in Chat  161 upvotes 2 months ago
      The conversation is about hair loss treatments, with users recommending finasteride and minoxidil as effective solutions. Some users report side effects, but overall, the consensus is to use these treatments rather than waiting for a cure.

      community I have not seen a single person who claims dutasteride destroyed their hair post a picture of the before/after

      in Finasteride/Dutasteride  123 upvotes 6 months ago
      The conversation discusses skepticism around claims that dutasteride worsens hair loss, with some users suggesting misinformation or panic during shedding as reasons for such claims. One user shared their negative experience with dutasteride, including increased sebum production and hair loss, and is now considering a higher dose of oral minoxidil after stopping dutasteride.

      community I experimented with every medication for hair loss for at least 1 year. my thoughts.

      in Treatment  66 upvotes 2 years ago
      Minoxidil effective for regrowth but causes dryness; finasteride stops hair loss but may affect hormones; dutasteride powerful but reduces libido; RU58841 thickens hair but expensive and risky; dermarolling improves blood flow and results; aminexil overrated and not effective. Dermarolling beneficial with both minoxidil and finasteride.

      community Hair transplant - 8 months update

      in Progress Pictures  756 upvotes 3 years ago
      User shares 8-month hair transplant update with 3800 grafts, using Minoxidil and Xpecia. Others express amazement at results and discuss costs and procedures.

      community Supplements for hair growth (Alcoholics, Smokers; and Gym Goers)

      in Treatment  6 upvotes 4 months ago
      A user shared their experience with hair loss and recommended supplements like magnesium, vitamin D, vitamin C, zinc, iron, and protein, along with using a dermaroller. They noted benefits such as accelerated fat loss, muscle growth, better digestion, increased testosterone, and improved hair and skin quality.

      community 22 yr asian male 2 year fin results

      in Progress Pictures  135 upvotes 1 year ago
      The user "Top_Replacement_7777" shared their positive results with finasteride for hair loss. They asked about maintaining their hair with finasteride and the impact of vaping on hair growth. Another user reassured them that vaping wouldn't affect their progress.

      community [21M] 3,5 Year Finasteride&Minoxidil Progress (Detailed & Pics)

      in Progress Pictures  65 upvotes 8 months ago
      A 21-year-old male shared his nearly 4-year experience with hair loss treatments, including finasteride, minoxidil, and other products, with initial success followed by shedding. He now continues with finasteride and oral minoxidil, noting changes in hair texture and slight hairline recession.