What it is: A brush designed with a flat, tapered cat's-tongue tip that is ideal for precision application of all types of concealer in just the right dose.What it does: It delivers a smooth and blended texture to flawlessly correct imperfections. Drawing inspiration from backstage Dior runway shows, this brush is designed for perfect, simple makeup application and is the ideal tool for use with correctors and concealers. It's made with extremely fine synthetic fibers that deliver flawless, controlled application in a single stroke and is recommended for use with cream or liquid products. How to use: Use with cream or liquid products. Apply on undereye circles and blemishes with the flat end, then blend out the product to adjust coverage.