Post Finasteride Syndrome (PFS) is debated, with some users reporting severe side effects from finasteride, while others believe these effects are rare or psychosomatic. Treatments discussed include finasteride, minoxidil, and RU58841.
Androgenic alopecia (AGA) might have evolved to reduce prostate cancer risk by increasing UV exposure to the scalp, but this theory is debated. Treatments like minoxidil and finasteride are used for AGA, though the exact causes and evolutionary reasons for hair loss are unclear.
Topical Finasteride doesn't directly reduce 5ar enzyme on scalp and has the same mechanism as oral, needing to go through the liver. Users debate the accuracy of this information and discuss various studies and experiences.