What it is: A liquid eyeliner. What it does: Guerlain liquid eyeliner has been designed like a calligraphy tool for precision and simplicity of use, with an ultra-fine brush, long handle, and impeccable line. From the thinnest to the heaviest contour, it provides flawless application. What it is formulated WITHOUT: Sulfates. Phthalates. GMOs. Triclosan.