If you're looking for a daily solution, look for a spray cleaner like Clinique Makeup Brush Cleaner, $34, which leaves your brushes dry and ready to use in minutes.
If a weekly clean is more your style, just make sure you're doing the job properly, OK?
"Gently work the shampoo through the brush with your fingers then rinse thoroughly and press out the water with a towel. Reshape and lay flat with the bristles over the edge of a shelf or table so that it dries totally," says Clark.
"Whatever you do, don't soak your brushes, as this will warp wooden handles and dissolve the glue keeping the ferrule and bristles in place and the bristles in place."