Shadows from mascara ?

Anyone out there having the same problem as me ? Which is the mascara always creates shadow underneath my lower outer eye area. Initially, I was thought it's the transfer from eyeliner but recently I've found that my eyeliner is unreachable to that area and the only possibility is mascara ! How could it be ? From the transfer patch, it could not be transfer during wet mascara, otherwise it should be a series of lines with mascara. It's a whole patch, some sort like eyeshadow powder fall on under eye area but way too low for undereye makeup. These shadows make my face looks dirty and ugly sighting of dark lines.