The proprietary synthetic fibers used in MUD’s 600 brush series were created to function like natural hair. Unlike the typical flat, untextured fibers that are designed to be used with cream products, these fibers have ultra-fine waves which create the porosity needed to pick up, hold, and deposit both powder and cream products. Tested and approved by make-up artists and consumers, the consistency, function, and luxurious feel make these fibers the best alternative to natural hair.