How do i clean off a paint brush that has nail polish dried onto it?

okay, so i bought those really skinny paint brushes that you use to paint small streaks and stripes on your nails. I used one of them to paint black stripes on my nails (a zebra design) and now i can't get the black paint off of the brush! i tried soaking the brush in nail polish remover over night and wiping it off in the morning, but it still wouldn't come off! the bristles are all stuck together with black nail polish. i do not wish for this to happen when i use my other brushes! how do i get it off?How do i clean off a paint brush that has nail polish dried onto it?
I'm guessing you used a synthetic brush. China Bristle is much better for what you are trying to do. You can get them at a craft store, and they usually have tan bristles. Immediately after you are done with your nails, soak them in a small cup with nail polish remover, or better yet straight acetone. That is the active ingredient in nail polish remover, but more concentrated. You can get acetone at any hardware store or home center in the paint department. Hope this helps.How do i clean off a paint brush that has nail polish dried onto it?
acetone, next time clean them when your DONE!
wait it off.