First, when researching Androgenetic Alopecia (AGA, otherwise known as male/female Pattern Baldness), your own research has likely led you to realize that the root cause is DHT (dihydrotestosterone).
DHT affects the prostrate in men, but also the follicles in the scalp of either men or women due to the hormonal imbalance of testosterone. Hence, studies that look at effective treatments for DHT often include those done for the prostate as well as those affected by AGA.
We've included links to some studies on this page. Some compare the well-known and only FDA approved treatments of Finnasteride (a drug) and minoxidil (a chemical), often branded as Rogaine.
While these have had results, they come with undesirable side effects, especially for men. You will see from the studies that the botanical extracts of saw palmetto, stinging nettle, lavender, peppermint and rosemary essential oils, along with pumpkin seed have similar effects on DHT, while being far less toxic and harmful, if at all. You can decide.