A makeup brush cleaner is essential for maintaining clean, bacteria-free brushes. Over time, makeup, oil, and dirt build up in brush bristles, which can lead to skin irritation and breakouts. Using a quality makeup brush cleaner helps remove this residue and keeps your brushes in top condition. To use, apply the cleaner to damp bristles, gently swirl the brush on a cleaning mat or your palm, then rinse thoroughly with lukewarm water. Let the brushes air dry completely. Regularly cleaning your brushes with a proper makeup brush cleaner ensures better makeup application and extends the life of your tools.