Does eyebrow hair grow back? How long?

Usually. Same as hair on head. Everyone has different phases or time in which their hair grows.

Related Questions

Will plucked eyebrow hair grow back in a different direction?

Usually not. as the hair shaft, follicle has it's own direction. You can change the way it appears to grow if you like with pomade, and other essential oils, moisturizer, but for the most part it follows the same direction as before it was removed. Read more...

So if you were to pierce 1 eyebrow, would hair grow back ok?

Depends. If the piercing does not disturb the hair roots then they will grow as if nothing were done. Emphasize the the person doing the procedure that you want him/her to bypass these roots and you wiil be ok. Read more...