My brushes were overdue to be cleaned, and instead of using Johnson’s Baby Shampoo like I normally do, I cleaned them with Dawn Dishwashing Liquid. I just squirted a bit of Dawn directly on each individual brush, rubbed it in, and washed it under the faucet with warm water.
Wow, what a difference. Every bit of makeup residue and oil is gone and they are soft and pliable.
Try it, it’s a good thing! ~ Jan