I wash them when they look a little dirty, using Zote.
I love the Daiso soap, that stuff works better for me than zote, beauty blender cleanser, anything
Zote is my go to for cleaning sponges and brushes but when it's gone I will give that a go!
Here’s why I hate washing beauty blenders and sponges r/o
Zote works great!
I actually washed me brushes last night. It's been... what feels like atleast
I make a DIY Fix+: I use a tiny sprayer (mostly for e/s). Boiled spring water (sterile and stays ++
there are lots of brushes, many reasonably priced ++
I hand wash with Zote laundry bar soap. Use the white, it's less fragranced than the ++
I use Zote, see my Notepad for details