What it is: A synthetic-bristle brush with a half moon-shaped brush head to hug your contours.What it does: Designed for use with liquid and cream concealer products or to optimize the performance of Vanish Airbrush Concealer (sold separately), this brush provides controlled application for the contours of your face, especially under the eyes. Its synthetic Taklon bristles are high-grade, ultrasoft and have the ideal density and texture to seamlessly blend makeup. How to use: Pat or blend concealer onto desired areas of your face for a seamless finish. Synthetic hair Cruelty-free