What it is: A waterproof eyeliner that glide on as effortlessly and can be smudged or used for supreme definition. What it does: Versatile and blendable, this eyeliner can stand up to even the longest days. The long-lasting, smudge-proof formula won't tug either. How to use: Start with a clean, dry lid. Staying close to the eyelash base, start at the outside corner of eye and work your line toward inner corner of eye. You'll have forty-five seconds to smudge or blend before it sets for all-day wear.