The Duet Concealer Brush by Kevyn Aucoin is an award-winning dual-ended tool that ensures flawless concealer application. The flat, rounded brush is perfect for precise laying down of product in hard-to-reach areas such as around the eyes, while the soft domed side is ideal for blending out and ensuring seamless, even coverage. The combination of the two results in visibly reduced blemishes, dark spots and other imperfections, leaving skin with a salon-professional, airbrushed look.