Liquid Eyeliner Applying liquid eyeliner is very tricky. Are you an experienced cosmetic user or are you prepared to spend the necessary time practicing? If not, ask yourself whether you really need or want liquid eyeliner. Unless it’s used very carefully, eyeliner can give a harsh look to the eyes.
You can buy liquid eyeliner in regular or water resistant/ waterproof, which is less likely to run or smudge. Liquid eyeliner should be color coordinated with your shadow. Liquid eyeliner may be particularly problematic for someone with sensitive or allergy-prone eyes. Never, ever test liquid eyeliner in the store.