Art Supplies

recently i broke my mac angled brush ]:
and i heard that i could use the loew cornell brushes to apply make up (since they're the best paint brush people..) an di went and dug out my loew cornell brushes. The thing is, is that my loew cornell 245b ang. shader has already been dipped in paint. If i wash it pretty thoroughly can i still use it on my face? (even if it has the paint stains ther?)
and my paint brushes arnt the real hairs (goat hair) they're just nylon
stains= as in the paint stains are on the brush