I have a system for washing my MAC brushes, and it won't work out any other way for me. I get a small bucket or bowl, I add half a tea spoon of
Bumble & Bumble Sea Weed Shampoo or you may use
Bumble & Bumble Sunday Shampoo.
The Sea Weed one is meant for everyday use and a clarifying shampoo, the Sunday shampoo is meant for use of once a week but really cleans up build up left on hair so you may want to use the Sunday shampoo twice a week.
Add lukewarm water into you bucket or bowl and mix so that it's get all bubbly. Take all your eye brushes and run water over them so you can individually place each brush in your bucket or bowl and just swish them around really good then if you want take each brush in the palm of your hand and swish it around in your palm make sure that they get really clean and then rinse them in
COLD WATER make sure you get all the shampoo out of the brushes and set them aside. After you have done this for your eye brushes take a clean dry towel and remove excess water and shape your brushes to the way they should look. Set them on a clean flat surface and let them air dry.
Do the same exact thing to your face brushes.
I also recommend conditioning you make up brushes with a good repair conditioner once a week I use
Shwarzkopf Repair Conditioner. Just add a drop into you bowl after you have cleaned your brushes, make sure your brushes are wet dip them into the conditioner and leave them in for a minute and then rinse them out in cold water.
Good Luck...