one day i was trying the Prescriptive foundation... the counterwoman applied foundation on me with a prescriptive foundation brush...and i could tell it was an amazing brush since every stroke was so even and natural..i felt the brush was soft..so i thought MAC must have something nicer cause so many ppl recommend MAC brushes..so i headed mine at MAC...at last..i found myself with a wrong choice....the brush worked fine the first 2 days..and then it sucks..well..i have to wash the foundation brush once in three days or else it would get hard..and that's pretty annoying..i don't know if this only happens in a MAC foundation brush or this matter applies to other foundation brushes..i would say..best to apply with our fingers..or spend couple more dollars on something that worthwile- prescriptive brush