bare Minerals® Shade & Diffuse Eye Brush. This whisker-tipped brush is functionality at its finest. bare Minerals® combined two types of synthetic fibers within one remarkable tool. The shorter, packed fibers place & build colour intensity. The longer, stretched fibers blend, diffuse & deliver a sheerer finish ideal for delicate or shimmering pigments. Flip bare Minerals® Shade & Diffuse Eye Brush on its side to contour & define the crease. Use best with: Prime Time Primer, eyeshadow & concealers.