KX-826 and RU58841: do topical anti-androgens work?
    9/3/2026

    From the encyclopedia
    RU58841 →

    Experimental topical anti-androgen sold as a research chemical

    Minoxidil →

    Vasodilator used on the scalp and, at low doses, as a tablet

    At a glance
    In this question or advice post, the primary subjects mentioned are
    💧 KX-826 (topical)
    💧 RU58841 (topical)
    💧 Minoxidil (topical) 5% once a day
    💧 Dutasteride (topical) evenings 4-5 months
    the tone is 😐 neutral with mixed anecdotal results.

    Other terms

    KX-826 and RU58841 are topical anti-androgens discussed for hair loss prevention, with KX-826 showing promise in trials and RU58841 having mixed anecdotal results. Users report combining these with treatments like minoxidil, finasteride, and dutasteride, with varying success and concerns about side effects.
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    5 / 5 results

      community Topical Anti Androgens detailed thread

       6 upvotes 2 months ago
      Users discuss the effectiveness of topical anti-androgens like RU58841, Pyri (KX826), and CB for hair loss. Some report maintenance and regrowth with Pyri, while others find limited success with RU58841 and switch to combinations like finasteride and minoxidil or minoxidil and dutasteride.

      community Recommendations for topical antiandrogens

      in Treatment  2 upvotes 9 months ago
      The conversation is about adding a topical anti-androgen to a hair loss treatment regimen that includes dutasteride and oral minoxidil. The user is considering topical finasteride or dutasteride, Nizoral shampoo, KX-826, and topical spironolactone, while avoiding RU58841 due to safety concerns.

      community What’s the consensus on RU58841 vs Pyrilutamide (Kx-826)?

       5 upvotes 6 months ago
      RU58841 and Pyrilutamide (Kx-826) are both topical anti-androgens, but neither is effective for hair regrowth. RU58841 has more anecdotal support, while Pyrilutamide has progressed further in trials, though both have limitations.

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