You have a choice between brushes with synthetic or natural fibers.
Using brushes to apply makeup - especially foundation - mitigates the spread of bacteria, makes your foundation apply more seamlessly, and prevents you from wasting product.
Leave them alone until they dry completely. Then, set all your brushes down on a clean paper towel. Gently squeeze out the brushes to get out excess water. Another way you can clean light dirt on brushed nickel is with glass cleaner. If you do this daily, it will remove any dirt before it accumulates on the surface. To remove light dirt on brushed nickel, dampen a soft cloth with clean water and wipe down the surface.
Brushes are everyday essentials for beauty, but the mistakes you're making with makeup brushes may be causing more problems than solutions.
And by greatness, I mean acceptable-for-public-veiwing-makeup that makes me feel fierce in the office or confident on date night. Makeup brushes are the tools I use to create greatness.