Add a pea sized amount of shampoo or brush cleaner to the Cleaning Tool. Dampen the bristles of your makeup brush with warm water and using a swirling motion, rub the bristles into a lather over the ridges. The bobbles and grooves agitate bristles as you swirl and scrub your make-up brush over the cleaner releasing the dirt. For small makeup brushes like shadow brushes and lip brushes use the bobbles at the top of the cleaner, and for larger brushes use the ridges. Rinse the makeup brush cleaner and hold brush under running water to remove foam. Repeat for super-soft, clean brushes.