Blending sponges are makeup tools designed to help achieve a smooth and even application of foundation, concealer, and other liquid or cream products. They are typically made from soft, porous materials that can absorb some product while blending it seamlessly into the skin. The unique shape of blending sponges allows for precision in hard-to-reach areas, such as around the eyes and nose. To use a blending sponge effectively, it is often recommended to dampen it before application. This helps the sponge expand and become even softer, allowing for a more natural finish. Popular brands of blending sponges include Beautyblender and Real Techniques, which are widely used by both professionals and makeup enthusiasts.