Mac Makeup Brushes generally animal hair, so use shampoo products on the line. Unplug the brush with warm water to wash away the remnants of cosmetics; then soaked in warm water plus a shampoo for 2-3 minutes, knead and wash and rinse; finally coated with moisturizing moisturizing conditioner with cold water flush! But pay attention when dry, with a napkin wrapped around the brush part hanging to dry, to prevent deformation!