Unlike traditional cosmetic pencils made from wax, these unique, silicone-based liners offer optimal levels of color pigment with a gentle application. This amazing formula lasts for up to 12 hours. This lip liner can be sharpened.Unlike traditional cosmetic pencils made from wax, these unique, silicone-based liners offer optimal levels of color pigment with a gentle application. This amazing formula lasts for up to 12 hours. This lip liner can be sharpened.Unlike traditional cosmetic pencils made from wax, these unique, silicone-based liners offer optimal levels of color pigment with a gentle application. This amazing formula lasts for up to 12 hours. This lip liner can be sharpened.