Foundation brushes are makeup tools designed to apply liquid or cream foundation evenly across the skin. They typically have dense, synthetic bristles that help blend the product seamlessly, providing a smooth finish. The shape of the brush can vary, with options like flat, rounded, or tapered to suit different application techniques and areas of the face. Using a foundation brush can enhance the overall look of your makeup by allowing for better control and precision. Many people prefer this method over using fingers or sponges, as it can reduce streaks and create a more polished appearance. Proper cleaning of the brush is essential to maintain hygiene and prolong its lifespan.