PP405: latest news. Really interesting

Research/Science 3/28/2026

PP405 is considered a promising hair loss treatment, potentially replacing minoxidil but not finasteride. Users are hopeful for future treatments like GT20029 and VDPHL01, while remaining cautious about effectiveness and side effects.

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.

The conversation discusses the potential for developing a biologic "DHT sponge" to neutralize DHT in the bloodstream as a treatment for hair loss, suggesting it could be more targeted and have fewer side effects than current treatments like finasteride and dutasteride. Concerns include the complexity, cost, and potential side effects of such a treatment, as well as skepticism about its feasibility and market interest.

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.

Dutasteride is more effective than finasteride for hair loss as it blocks more of the enzyme causing hair loss. New treatments like stem cell therapies and alternatives to minoxidil are being explored, but major advancements are still years away.