Dutasteride lowers dihydrotestosterone (DHT) by inhibiting both type I and II 5-alpha reductase isoenzymes. Clinically, it helps reduce an enlarged prostate and off-label combats androgenic alopecia.
Compared to Finasteride, it may cause a deeper reduction in DHT, potentially translating to stronger hair and prostate benefits. However, its potency also increases the risk of sexual side effects. Medical supervision is key for older men exploring it.
