Every woman needs to do know what makeup brushes are for what. Also you need to wash them after every application. Trust me it makes a huge difference!
I wash all of my brushes with Dawn Dish Soap, Olive Oil, and water.
I put a few squirts of soap on a plate with a few drops of Olive oil. I swirl my brushes around on the plate and then hold the brush under running warm water until all the soap and makeup is out. Let them air dry and viola! All is clean!! Having clean brushes helps makeup apply flawlessly and keeps your skin from breaking out.
Here are tips on how to use which brush for applying makeup to your face.