Scroll on for the best drugstore waterproof eyeliners available on Amazon. Best Drugstore Waterproof eyeliners: Liquids, Pencils, and Gels! - If you have dark brown eyes, eyeliners in black, navy blue, or deep brown will give them a deeper, richer shade of brown.- If you have light brown or amber eyes, dark blue, green, or plum liners will draw attention to them and make them appear more defined and clear. - If you have blue eyes, bronze liners will completely enhance your baby blues.- If you have green eyes, you can enhance them with violet or purple eyeliners. 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.