From the manufacturer:

Taking "eye-lining" to the next level, Trish's rich, powdered Eye Definers effortlessly provide smudge-proof, ultra-flattering, long-lasting definition and are triple-pigmented to beautifully enhance the lash line and are also perfect for creating a smoky eye. In an array of colors and matte or shimmer-infused textures, Trish's secret formula will show you the true beauty of "lining" your eyes.