US Patent No. 9,987,213 B2; Edward Dunne Corboy, Jr. of Skokie, IL has patented a method for promoting or enhancing facial hair growth. The method entails topically administering an effective amount of a pharmaceutically acceptable formulation of dihydrotestosterone to a target skin area (which is the mustache region, beard region, or both) of an adult human male who has completed puberty and who is unable to grow full beards and mustaches. The target skin area has sparse mature terminal hair a...