Yes! Dihydrotestosterone blocking pills are one of the most effective proven hair loss treatments. And not just that, there is plenty of anecdotal evidence that shows that they also aid in bumping future growth and blooming of hair. In fact, there's a study conducted by the Journal of Investigative Dermatology that unearthed how more than 80% of men who took dihydrotesterone experienced some degree of decrease in hair loss weeks after starting treatment while close to a whopping 66% were able to reverse their bald spots. Purely statistically speaking, those are quite promising numbers for a treatment that involves just taking a couple of capsules per day, especially considering how hard it is to kickstart a spurt of healthy hair regrowth or putting some brakes on hair loss.