Here are some quick steps for cleaning your makeup brushes:
Wet the bristles only (not the base) with lukewarm water.
Place a drop of cleanser into the palm of your hand.
Gently massage the “tips” of the bristles in the cleanser.
Rinse the bristles.
Squeeze out any excess moisture with a clean towel.
Reshape the brush head.
Dry the brush with the bristles hanging off the edge of a counter, allowing it to dry in the correct shape. Never let your brushes dry on a towel — the bristles can become mildewed.
When is it time to throw away a makeup brush?
Toss your makeup brush when the bristles start to fray, shed, or lose their shape.