Smashbox Always Sharp Lip Liner-Ruby;

What it is:
A long-wearing, water-resistant lip liner that self-sharpens every time you twist off the cap.

What it does:
Give your lip the ultimate lip look with this lip liner that lasts. These lip liners feature tiny built-in sharpeners in the tip of the cap, so that they conveniently self-sharpen every time you twist off the cap. Enhance the shape of lips with this precise tip that can accentuate your cupid's bow for fullness, or line your inside edges for a slimming effect. The color-matched sculpting lets you match to an array of lip colors, and its water-resistant formula ensures that the lip liner does not smudge, feather, or bleed.

What else you need to know:
"I was obsessed when our Always Sharp Eye Liners came out, because I didn't have to stop and sharpen on set-and now it's the same thing for lips!"-Lori Taylor Davis, Smashbox Global Pro Lead Makeup Artist