Propecia is an effective and safe drug that is used to treat baldness in men. The product actively stimulates hair growth and prevents hair loss. The main active ingredient of the drug is finasteride. One tablet of Propecia contains one milligram of substance. Propecia low testosterone is a medicine for stopping hair loss in men and treating prostate adenoma. It slows down the conversion of testosterone to dihydrotestosterone by binding to the second-type 5-alpha reductase enzyme. Affects the root cause of baldness, but does not stimulate the growth of new hair, so it is used in conjunction with minoxidil. Holds existing hair and slows further baldness. The drug is available in pill form and is taken orally every day.