Brow mascara

Hi guys,
Everyone knows what is mascara but u guys heard about brow mascara?

Brow mascaras are very popular in Japan and Korea. Why? Asian girls have very sparse brows so they do many tricks to make them beautiful but mascara is best way. 
Mascara have many colors like gold, caffe, black, brown, red etc. Thats cool coz no matter which hair color u have or what type of beauty u always can buy mascara in color which will be looks good with it,
How to using it? Thats pretty easy.

How looks the results?

Korean trick:
Very popular is mix colors. When u have black hair u can use brown mascara or other stuff to brows. When u have blond u can use some dark. 
Japanese trick:
Girls which changing colors on light like blond always using gold mascara. That looks more fresh and eyes are bigger.