The average eyelash grows back in 4 to 6 weeks.
Eyelashes are the hairs that grow on the edge of your eyelids. They protect your eyes from getting scratched and help keep dirt and other particles out of the eye. They also help spread moisture across the surface of your eye.
The average eyelash grows back in 4 to 6 weeks, but it can take up to six months for some people.