Thru Line Waterproof Eyeliner
Up to 24-hour color. Safe for sensitive eyes.
Earn points with this purchase.
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.
- CherylVerified ReviewerReviewingThru Line Waterproof EyelinerI recommend this productSkin Type NormalSkin Tone WarmUndertone WarmEye Color GreenAge Range 55-64Reviewed by An incentivized reviewerReviewed By An ILIA customerThru Line Waterproof Eyeliner GestureRated 5 out of 5 stars9/17/26Smooth application
Another great product from ILIA. This waterproof eyeliner goes on smooth and lasts all day. Gesture is a brown shade and I choose it every time. I am very happy with this product and I would recommend it.
- RuthieVerified BuyerReviewingThru Line Waterproof EyelinerI recommend this productSkin Type NormalSkin Tone CoolUndertone CoolEye Color BrownReviewed by An ILIA customerReviewed By An ILIA customerThru Line Waterproof Eyeliner InkRated 5 out of 5 stars9/16/26Phenomenal!
I tried the Thru Line Waterproof Eyeliner in black and it is phenomenal! It stays on all day without smudging — my liner still looks fresh by evening, which almost never happens for me. I would definitely buy it again. Highly recommend!
- Alicia A.Verified BuyerReviewingThru Line Waterproof EyelinerI recommend this productSkin Type CombinationSkin Tone CoolUndertone CoolEye Color HazelAge Range 65+Reviewed by An ILIA customerReviewed By An ILIA customerThru Line Waterproof Eyeliner GraphiteRated 5 out of 5 stars9/16/26Charcoal
I really this eyeliner because of the ease of applying it and the charcoal color. Not as harsh as black. However, there was nothing said about sharpening the point. I tried a sharpener I already owned but it didn’t do the job. So I ordered Ilia’s and it worked fine.
- Carol C.Verified BuyerReviewingThru Line Waterproof EyelinerI recommend this productSkin Type NormalSkin Tone NeutralUndertone CoolEye Color BlueAge Range 55-64Reviewed by An ILIA customerReviewed By An ILIA customerThru Line Waterproof Eyeliner GestureRated 5 out of 5 stars9/15/26Great eyeliner
Loved this liner. Unlike other brands, it does not break off or run out quickly. Nice line. Will be back.
- Cynthia C.Verified BuyerReviewingThru Line Waterproof EyelinerI recommend this productSkin Type NormalSkin Tone CoolUndertone NeutralEye Color BrownAge Range 65+Reviewed by An ILIA customerReviewed By An ILIA customerRated 5 out of 5 stars9/15/26Best eyeliner
Easy to apply, stays on and not irritating to the eyes
