New human study (Aug 2026) directly tested whether RU58841 stays local - it doesn't
    9/3/2026

    From the encyclopedia
    RU58841 →

    Experimental topical anti-androgen sold as a research chemical

    Clascoterone →

    Topical androgen-receptor blocker, approved as an acne cream

    At a glance
    In this educational post, the primary subjects mentioned are
    💧 RU58841 (topical) 30mg/mL single application 7-10 days observation
    the tone is 😐 neutral.

    Other terms

    RU58841 is absorbed systemically in humans, contradicting claims it stays local, but no harm is proven. Alternatives like CB-03-01 or KX-826, especially with finasteride, are suggested for safety.
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    6 / 6 results

      community RU58841 vs. KX-826 vs. CB-03-01

       16 upvotes 4 months ago
      RU58841 shows the strongest results despite weaker binding affinity, while KX-826 and CB-03-01 are more expensive and have minimal side effects. RU58841 is considered effective but has potential health risks if ingested; users report positive outcomes with RU58841 and finasteride.

      community Consenus on Kx-826/pyrilutamide vs ru58841

       11 upvotes 3 weeks ago
      KX-826 is considered effective for hair maintenance, with better safety research than RU58841, but lacks positive anecdotes. RU58841 is seen as potentially stronger, but concerns exist about systemic effects; combining anti-androgens with 5AR inhibitors is suggested for better results.

      community Breezula is a good alternative

       8 upvotes 5 months ago
      Clascoterone 5% solution (Breezula) is a promising alternative for androgenetic alopecia, showing continued hair growth with consistent use and no significant side effects. It may be suitable for those who cannot tolerate finasteride or dutasteride, especially when trying to conceive.

      community Switch from fin to dut and its worse

       4 upvotes 1 year ago
      Switching from finasteride to dutasteride can worsen hair loss for some men due to increased testosterone levels. Topical treatments like RU58841 and Pyrilutamide are suggested to counteract these effects, but individual responses vary.

      community Almost 4 months, before and after of pyrilutamide .5% once daily

       23 upvotes 4 months ago
      The user experienced significant hair regrowth using a combination of minoxidil, alfatradiol, pyrilutamide, and nizoral, despite previous intolerance to finasteride. They emphasize the importance of consistency in treatment and are optimistic about the results, noting no side effects so far.

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    6 / 6 results