Parabens Sulfates Phthalates What Else You Need to Know: Highliner is an Allure Best of Beauty Award Winner. Highliner contains a built-in sharpener at its base: To use, pop out the black sharpener and twist the tip of Highliner to sharpen. You can also sharpen Highliner against a tissue to form a precise point. Always close the cap tightly to keep Highliners supple glide and long wear. How To Use: Uncap and glide Highliner across the eyes. If desired, work quickly with a smudging brush to s.