When's the last time you washed your makeup brushes? Zoe recommends e.l.f. Cosmetics' Solid Sponge Cleanser to tackle the task. This solid bar cleanser is incredibly easy to use - just add water and wash your brushes. Zoe even demonstrates how simple it is in her video review. The cleanser effectively removes built-up residue, leaving your brushes clean and ready for flawless application. While the benefits of this product are clear, it's important to note that some users may prefer a liquid cleanser for convenience. Overall, e.l.f. Cosmetics' Solid Sponge Cleanser is a reliable option for maintaining clean and hygienic makeup brushes.