Has anyone tried CB-01-03 aka Clascoterone?

Research/Science 3/9/2026

Someone looking for solutions to their hair loss, who has tried and failed to tolerate anti-androgen treatments such as finasteride, CB-03-01, RU58841, and Eucapil. The user is seeking advice and understanding of their extreme sensitivity to these treatments.

The user stopped using finasteride and RU58841 and is considering CB-03-01 for androgenic alopecia but is concerned about the cost and effectiveness, especially at a lower dose than in clinical trials. They are also using minoxidil, micro-needling, and nizoral shampoo but are unsure about the correct application method for CB-03-01.

Clascoterone (CB) shows an excellent safety profile with no serious side effects, but its effectiveness may decline after six months, making it more suitable as an adjunct treatment with finasteride and minoxidil rather than a standalone solution. Some argue it could be better than finasteride due to its protection against testosterone, but its long-term efficacy remains debated.

The conversation discusses anticipation for CB-03-01, a potential new hair loss treatment that may be more effective and have a cleaner safety profile than finasteride. Users are hopeful but cautious, discussing current treatments like minoxidil, nizoral, and dermarolling, and the possibility of combining them with CB-03-01 for better results.

Clascoterone shows promising results for hair regrowth in men with androgenetic alopecia, with potential FDA approval by 2026. It acts as a topical androgen receptor blocker, offering a new treatment option with minimal side effects compared to existing treatments like finasteride.