Abstract
Alopecia is a disease that affects 50% of men at age around 50 and almost to a 50% of women. This disease is characterized by decreased or absent of hair, which creates emotional distress for millions of men and women in the world. The treatment of alopecia is performed, in general, for topical application of drugs, for example, by 17-alpha-estradiol which is a stereoisomer of the sex hor…