Zero - zealous black UD's long-lasting, waterproof liner glides on smoothly to prime and define - for long-lasting lip color and clean lines. Get primed and ready for action. Smooch. Pout. Smack. Nibble. Lick. 24/7 stays put through everything you do. When you use our liner to fill in your lips completely, it primes them for lipstick or gloss, grabbing on to color to help it last. Part of the 24/7 family, our long-lasting, waterproof formula glides on smoothly, stays creamy and defines your lips with gorgeous color. And unlike a lot of waterproof pencils, 24/7 never feels dry or cakey. Moisturizing vitamin E, jojoba oil and cottonseed oil nourish your lips every time you reapply. And shade-matched barrels make it easy to find the exact color you need.