Besides bacteria, brushes also accumulate dead skin cells and oil, which can clog your pores and lead to dull or blemished skin. It’s crucial that you clean your brushes. Clean brushes allows your make up to go on more smooth and even. Even if you have the best or most expensive makeup or makeup brush… Makeup can become streaky and patchy when you apply it with a dirty brush. Clean bristles will assure a smoother application. Make up brushes and tools should be cleaned at least once per week. Here is a quick video to walk you through step by step how to do it.