Testosterone? health:hair it is testosterone and have more like levels

Yea - hair is like a secondary genderual characteristic for men (like combs in a chicken) and this is stimulated by testosterone. The reason you get it during developing puberty is because testosterone levels rise significantly. Higher testosterone will cause more hair.

And females get facial hair if they have higher than 26039;normal26039; levels of testosterone, as indeed both males and females have it its just males have it in higher concentrations.