Want to define and accentuate your eyes? Tightlining is a makeup trick that can do exactly that – but if you aren't a makeup pro, you might not be 100% sure what it is or how it works.

Why We Love It: Clinique is always a safe bet for those with sensitive eyes. Its gel eyeliner—and a water-resistant and ...

shade and tightline to your heart's content. Of course, like many make-up bag staples, changing up your eyeliner or testing a totally new product doesn't come without its own set of concerns ...