01 / The basics
What is Thru Line Waterproof Eyeliner?
ILIA lists ten matte and shimmer shades with avocado-oil-coated pigments. The brand describes the pencil as waterproof, with up to 24-hour wear; blend promptly before it sets.
- Best for
- A defined line or softly blended eye
- Launch month
- 2026-07
02 / Review
Who should consider it?
A pencil gives you time to soften the line before it sets. Choose liquid liner instead if your priority is an exceptionally fine, crisp wing. Keep the rest of the eye quieter when using a visibly reflective shade.
03 / Review
What should you check before buying?
Waterproof and long-wear claims do not guarantee comfortable wear for every eye. Follow the selected shade’s eye-area directions and use an appropriate remover without rubbing.
04 / How to use it
How should you use Thru Line Waterproof Eyeliner?
- 01Apply in short strokes along the lash line as directed by ILIA.
- 02Blend promptly if you want a softer edge.
- 03Let the pencil set and remove gently at the end of wear.
05 / Quick facts
What should you know before choosing Thru Line Waterproof Eyeliner?
- —Format: Waterproof eyeliner pencil.
- —Finish: Matte or shimmer.
- —Intended role: A defined line or softly blended eye.
- —Details checked against the linked official source on 8 September 2026.