5-Alpha Reductase (5a Reductase) is an enzyme that catalyzes the irreversible reduction of testosterone to dihydrotestosterone. So how does 5-alpha reductase effect hair loss? Lets take an in-depth review. Androgenic alopecia results in follicular miniaturization. Androgenic alopecia is the scientific name for male and female pattern baldness. Androgenic alopecia is … [Read more...] about What Is 5-Alpha Reductase?