What it is: A small, fluffy brush designed for use with the bestselling Radiant Creamy Concealer (sold separately). What Else You Need to Know: This small, fluffy brush is designed for use with the bestselling Radiant Creamy Concealer (sold separately), applying the award-winning, creamy formula with a smooth, even finish and an airbrushed effect. Its contoured shape is ideal for seamlessly blending and diffusing product onto the delicate under-eye area.