What’s the consensus on RU58841 vs Pyrilutamide (Kx-826)? Research/Science 3/27/2026
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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5 / 1000+ resultscommunity Choose your topical antiandrogen and tell me why
The conversation is about choosing a topical antiandrogen for hair loss, with options including RU58841, CB0301, Pyrolutamide, Alfatradiol, and Fluridil. Users discuss their preferences and reasons for selecting specific treatments.
community Kintor’s KX-826 Pyrilutamide!!
KX-826 hair loss treatment completed trials with mild side effects. GT20029 may be ultimate cure, destroying androgen receptors causing baldness.
community No side effects on pyrilutamide / KX-826 so far
User TopBack56 and friends tried pyrilutamide (KX-826) for hair loss without experiencing negative side effects. They observed fine vellus hairs but no thick hair growth yet, and plan to add GT20029 to their regime after safety trials.
community Waiting to start treatment until Kintor KX-826 Phase 2 data is published?
People are waiting for KX-826 (Pyrilutamide) Phase 2 data to decide on hair loss treatments, with some considering finasteride or minoxidil in the meantime. Pyrilutamide is seen as a potentially stronger and safer alternative to finasteride, but concerns about side effects and availability remain.
community Clascoterone - what we have right now
Clascoterone is a topical treatment for androgenetic alopecia, showing modest to moderate hair regrowth, and may be available by 2027-2028. It is considered safer than finasteride, with discussions on its effectiveness compared to RU58841 and pyrilutamide.
Related Research
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research RU 58841, A New Specific Topical Antiandrogen: A Candidate of Choice for the Treatment of Acne, Androgenetic Alopecia, and Hirsutism
RU 58841 may treat acne, hair loss, and excessive hair growth.
research RU 58841-Myristate Prodrug Development for Topical Treatment of Acne and Androgenetic Alopecia
RUM-loaded SLN shows promise for treating acne and hair loss topically.
research Evaluation of RU58841 as an Anti-Androgen in Prostate PC3 Cells and a Topical Anti-Alopecia Agent in the Bald Scalp of Stumptailed Macaques
RU58841, a nonsteroidal anti-androgen, showed potential as a topical treatment for hair loss, increasing hair density, thickness, and length without systemic side effects in Stumptailed Macaques.
research A Controlled Study of the Effects of RU58841, a Non-Steroidal Antiandrogen, on Human Hair Production by Balding Scalp Grafts Maintained on Testosterone-Conditioned Nude Mice
RU58841 significantly increases hair growth rate and initiates more hair cycles, but doesn't affect hair thickness, suggesting it could be a new treatment for baldness.
research Dose-Dependent and Long-Term Effects of RU58841 (Androgen Receptor Blocker) on Hair Growth in the Bald Stumptailed Macaque
RU58841, an androgen receptor blocker, significantly increased hair density, thickness, and length in monkeys when applied topically daily for several months.
research Significance of RU58841 as a Therapeutic Agent Affecting Androgen Receptor Molecular Interactions in Human Hair Follicles
RU58841, a substance from France, can potentially block the effects of hormones that cause hair loss and excessive hair growth, performing better than a similar substance, cyproterone acetate.