For powder- or emollient-based product application. This brush has firm fibres carefully shaped to form a rounded edge for a smooth, even finish. MAC professional brushes are hand-sculpted and assembled using the finest quality materials. MAC 100% synthetic brushes incorporate the latest innovations in fibre technology for superior performance and improved longevity. Synthetic. Imported. Cosmetics - Mac > Mac > Saks Fifth Avenue > Barneys. MAC.