How does one clean Laura Mercier makeup brushes?

Wet the brush with warm, but not hot, water. Using about a dime sized amount, massage shampoo into the brush, making sure to get down to the base. Then, rinse until the water runs clear. Repeat this step if this is the first time washing your brushes, or haven't done it in a while. Then, using the same amount, condition your brushes with a regular conditioner. Rinse until runs clear. Allow to dry overnight (sometimes longer, you'll be able to tell when they're dry). Make sure to lay brushes in the shape you want them to dry in, otherwise the bristles will become misshaped.