Bare Escentuals Cosmetics Buffing Eye Brush Brand New and Factory sealed For application of eye shadow to the lid area. This brush has a thick bundle of fibers arranged in a rounded shape. Bare Escentuals professional brushes are designed to buff on the perfect amount of bareMinerals for the most natural, flawless application. Only the finest quality of hairs are used to make buffing bareMinerals feel like second nature.