Every now and then, I will use BeautyBlender's liquid cleanser for my eye brushes. For a proper cleanse, I rely on 2 tablespoons of Palmolive or Dawn Pure dish washing liquids — whichever I have on hand — with a splash of extra virgin olive oil. I add 1/2 cup of water and swirl the mixture together with a clean finger. I then run each brush under running lukewarm water and proceed to dip the stained section of the bristles into the solution. Using a gentle back and forth motion, I 'swish' the brushes in the palm of my hand until the makeup is removed and the water runs clear.