Thru Line Waterproof Eyeliner
Up to 24-hour color. Safe for sensitive eyes.
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An artist is only as good as their tools. Lock in your signature look with Thru Line Eye Essentials—a tight edit of your favorite shade of Thru Line Waterproof Eyeliner, plus a dual-ended brush and custom sharpener for perfect application every time.
Hold the Line
Define your look with Thru Line Waterproof Eyeliner, a long-wear formula that’s safe for sensitive eyes and the waterline. Thru Line is waterproof, sweatproof, and glides on smoothly without dragging, skipping, or tugging. The rich, saturated color blends effortlessly for diffused definition, then sets for up to 24-hour wear. Choose your favorite among 10 art-inspired shades, from nuanced neutrals to dimensional jewel tones.
One brush. Infinite eye looks.
The Angled Line + Smudge Brush is designed for precise liner application and seamless blending. Use the angled side to create clean lines, then switch to the smudger side to soften for a smoky, diffused effect. Pair the versatile tool with any ILIA eye essential.
Get to the Point
Sharpen Thru Line Waterproof Eyeliner and Lip Sketch Hydrating Crayon to a clean, precise point with this custom-designed pencil sharpener. Crafted from 100% recycled plastic and durable stainless steel, it comes with a built-in cleaning tool and removable cover to capture shavings for less mess.
- Debra M.Verified BuyerReviewingThru Line Waterproof EyelinerI do not recommend this productSkin Type CombinationSkin Tone WarmUndertone WarmEye Color HazelAge Range 65+Reviewed by An ILIA customerReviewed By An ILIA customerRated 1 out of 5 stars9/21/26Disappointed
Very hard to sharpen. Outer casing super hard. Even bought the Ilia sharpener thinking it would make it easier - unfortunately, no. Was never able to get a good point. I love Ilia products and have been buying the line for years. This was a big disappointment.
- BarbaraReviewingThru Line Waterproof EyelinerI do not recommend this productRated 1 out of 5 stars9/20/261 Star
I’m disappointed. This is advertised as long wearing. The first time I wore it, it lasted 4 hours. Not extraordinary. Just ordinary.
- KarenReviewingThru Line Waterproof EyelinerI recommend this productRated 5 out of 5 stars9/20/265 Stars
This is now my go to eyeliner. Goes on lid beautifully and really does last. Love this brand.
- NerkisReviewingThru Line Waterproof EyelinerI recommend this productRated 5 out of 5 stars9/19/265 Stars
love the color and the formulation
- NerkisReviewingThru Line Waterproof EyelinerI recommend this productRated 5 out of 5 stars9/19/265 Stars
love it, really smooth 👌
