Take this quiz to find out. Retro Eyeliner Waterproof Black The answer is quite simple: a waterproof formula. "I actually think that all eyeliner should be waterproof, but they are not all created equal. There are times you will have to test different ones to see which works best," Kelsey Murrell, one half of the YouTube duo The Glam Twinz, tells us. This is a favourite amongst celebr... https://deepandnaturalbeauty.com/