How often should expensive(the ones you buy at the counters not drug stores etc.) make-up brushes be cleaned?

At least once a week. Make sure you use a cleaner made for brushes or the hairs could fall out. I use the cleanser from Bee-Luscious but that is also where I got my brushes. Yeah I won't buy those cheap brush either.How often should expensive(the ones you buy at the counters not drug stores etc.) make-up brushes be cleaned?
At least once a week.How often should expensive(the ones you buy at the counters not drug stores etc.) make-up brushes be cleaned?
Once a week at least, if you use them often, every couple of days is fine.
Every other use. Bacteria can thrive on something in a very short time.
every week if you can

thick hair