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    Did you mean Pohl-Pinkus constrictions?
    GlossaryPohl-Pinkus constrictions

    narrow, weakened areas on hair shafts from growth disruptions

    Pohl-Pinkus constrictions are narrow, weakened areas along the hair shaft that can occur due to temporary disruptions in hair growth, often caused by physical or emotional stress, illness, or nutritional deficiencies. These constrictions can make the hair more prone to breakage and are sometimes used as indicators of past physiological stress in trichological examinations.

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      community PG causing irritation when applying RU

      in Research/Science 2 years ago
      The user is experiencing irritation from using PG with RU58841 and is seeking alternative solutions like K&B in the UK. They report redness, itchiness, and flaky skin from the current treatment.

      community Pp405 phase 2a clinical results

      in Research/Science  38 upvotes 9 months ago
      PP405 shows initial promise for treating androgenetic alopecia, with safety confirmed in early trials, but skepticism remains due to limited data. Further trials are needed to determine its true efficacy and potential market impact.

      community Why doesn't phase 3 of PP405 start straight away?

      in Chat  14 upvotes 3 months ago
      Pelage is delaying the start of phase 3 trials for PP405 to 2026 due to necessary regulatory processes, despite having $120 million in funding. Users discuss the potential of PP405 for hair regrowth, with some expressing skepticism and others hopeful for new treatments like Breezula.

      community Will pp405 have to be inserted rectally for full benefits?

      in Transgender  32 upvotes 4 months ago
      Pp405 is discussed as a potential hair loss treatment, with humorous suggestions about rectal administration for increased effectiveness. Users joke about unconventional methods and express willingness to try anything for hair regrowth.

      community PP405 is nothing but a scam and Pelage know it.

      in Chat  78 upvotes 7 months ago
      PP405 is criticized for overhyped claims and cherry-picked data, with doubts about its effectiveness compared to minoxidil and finasteride. Many users express skepticism, emphasizing the need for more comprehensive trial results.

      community Pelage PP405 Phase 2a completed.

      in Research/Science  61 upvotes 2 months ago
      Minoxidil, finasteride, and RU58841 are discussed as treatments for hair loss, with excitement around a new drug, PP405, and a reformulated oral minoxidil in trials. Concerns about cost, side effects, and long-term use are also mentioned.

      community How long are Pelage going to milk the phase 2a results of PP405?

      in Chat  21 upvotes 2 months ago
      PP405, a potential hair loss treatment, is facing delays in releasing Phase 2 results, causing frustration among users who compare it to past failed treatments. Despite skepticism, some remain hopeful about PP405's future, while others discuss alternative treatments like Clascoterone and its expected market release.

      community RU-58841 Lung Disease Possibility | Chest pain, "heart issues", etc

      in Treatment  22 upvotes 2 years ago
      Some users of RU-58841 report cardiovascular symptoms like heart palpitations and chest tightness, which may be linked to its metabolites causing lung disease. The safety of RU-58841 is uncertain due to lack of long-term data and concerns about product purity, especially from gray market sources.

      community PP405 (Non) Update - Feb 2025

      in Research/Science  34 upvotes 1 year ago
      The conversation discusses the delay in the PP405 Phase 2 study results, now expected by the end of 2025, and skepticism about research practices. There is also mention of optimism for Amplifica's AMP303 and a topical treatment in early testing.

      community Apparently you can try PP405 right now!?

      in Research/Science  32 upvotes 10 months ago
      PP405 is likely a scam, with concerns about its legitimacy and safety, as it may cause unintended tissue growth. Users suggest sticking to known treatments like finasteride and minoxidil.

      community Doubtful of RU58441's negative effects

      in Research/Science  2 upvotes 8 months ago
      RU58841's potential side effects, particularly heart palpitations, are debated, with some attributing them to contamination with minoxidil. Users report mixed experiences, with some seeing no side effects and others cautioning about the lack of reliable data on RU58841's safety.

      community DLQ01: A Better "Minoxidil" PGF2a synthetic analogue.

      in Research/Science  3 upvotes 1 year ago
      DLQ01, a prostaglandin F2α analog, shows promise for hair growth by directly stimulating PGE2/PGF receptors without needing conversion, and can be combined with minoxidil and retinoids like tretinoin for enhanced effectiveness. Minoxidil's efficacy may be reduced by COX-1 inhibitors, but using prostaglandin analogs like Latanoprost or Bimatoprost can help maintain its effectiveness.

      community How many years can we expect PP405 to be on the market

      in Product  12 upvotes 8 months ago
      PP405 is expected to be on the market between 2027 and 2030, with phase 3 trials starting in 2026. There is skepticism about its fast-tracking due to its cosmetic nature, and it may appear on the gray market sooner.

      community P-1075: a BETTER version of Minoxidil

      in Research/Science 6 months ago
      P-1075 is a more potent hair growth agent than Minoxidil, but it poses significant heart risks, making it unsafe for use. Despite promising results in macaques, concerns about its cardiotoxicity in rats have halted its development.

      community Full extent of pp405 effectiveness

      in Treatment  14 upvotes 5 months ago
      The conversation discusses the potential effectiveness and future results of the hair loss treatment pp405, with questions about its impact on different hair loss stages and areas. There is anticipation for phase 3 trial results to provide more data, and hope that pp405 could enhance hair transplant outcomes.

      community Don't use PP405 from everychem. it is likely fake.

      in Research/Science  66 upvotes 9 months ago
      PP405 from Everychem is likely fake and potentially harmful, with concerns about its stability and the risk of using the wrong MPC inhibitor, which could damage hair follicles. The real PP405 was studied under strict conditions, and DIY attempts are discouraged due to unknown formulation and quality control.

      community P5P supplementation for fin sides.

      in Treatment  7 upvotes 3 years ago
      P5P supplementation helped reverse finasteride side effects, particularly by lowering prolactin levels and restoring sensitivity. The user experienced significant improvement within a day and full recovery in a few days.

      community If PP405 works it will be fkn impossible to buy it.

      in Technology  104 upvotes 5 months ago
      PP405 is a potential hair loss treatment that may activate dormant hair follicles, but there are concerns about its effectiveness, cost, and side effects. Users discuss treatments like minoxidil, finasteride, and RU58841, expressing skepticism about PP405's long-term success and accessibility.

      community The story of RU58841/PSK3841

      in Research/Science 1 year ago
      RU58841, an anti-androgenic compound, showed early promise for treating alopecia but faced challenges after its patent in 1997. Despite advancing to Phase II trials, safety concerns and financial struggles led Aventis to abandon its development. Proskelia, which later merged into ProStrakan, couldn't prioritize the drug, leading to its eventual stagnation and failure to reach the market.

      community Federal Grant Cuts have impacted PP405 related research

      in Technology  457 upvotes 7 months ago
      Federal funding cuts have delayed PP405 research, affecting hair loss treatment progress, though clinical trials will continue. The discussion highlights PP405's potential compared to minoxidil and finasteride and stresses the importance of government-funded research.

      community Approve PP405 quickly you coward

      in Satire  193 upvotes 9 months ago
      Pelage Pharmaceuticals is developing PP405, a topical treatment for hair growth, currently in Phase 2a trials. There is skepticism about the company's claims, and no fast-tracking approval timeline has been detailed.

      community RU and cetosomal minoxidil topical

      in Minoxidil  1 upvotes 2 months ago
      Mixing RU58841 with cetosomal minoxidil is discussed due to scalp irritation from ethanol PG vehicles. A mixture of the two turned bright pink when left to dry.