When I’m not pressed for time, I’ll wipe down the brush heads with a Wet Ones Wipe after each use.
Then, about every other weekend, I’ll clean them more thoroughly with shampoo (I’ve gotten good results with Aussie’s Opposites Attract Protect + Soften; it breaks up dried and caked product fast).
I haven’t cleaned my brushes with shampoo in a couple weeks, though, relying instead on those quickie cleanups with Wet Ones Wipes, but my brush heads are getting pretty gunky (gross!)…
Your friendly neighborhood beauty addict,