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Thru Line Waterproof Eyeliner - NEW

Thru Line Waterproof Eyeliner

€30 EUR ( value)

Shade: Serif

Matte dark brown

Finish

Shade: Serif

Size: 0.04 oz / 1 g

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Finally, a long-wear liner that’s safe for sensitive eyes and the waterline. This waterproof, sweatproof formula glides on smoothly without dragging, skipping, or tugging. The rich, saturated color blends effortlessly for diffused definition, then locks in up to 24-hour wear. It’s available in an art-inspired palette of 10 shades, from nuanced neutrals to dimensional jewel tones. The sharpenable pencil is made in part from repurposed coffee chaff—an innovative material that uses would-be waste from the coffee industry. It’s clinically tested on sensitive eyes and the waterline—so everyone can define their signature look.

Dimethicone, Synthetic Wax, Trimethylsiloxysilicate, Mica, Dicalcium Phosphate, C20-24 Alkyl Dimethicone, Calcium Silicate, Polyethylene, Phenylpropyldimethylsiloxysilicate, Persea Gratissima (Avocado) Oil, Linoleic Acid, Linolenic Acid, Tocopherol, Hydrogenated Vegetable Oil, Polyhydroxystearic Acid, Disteardimonium Hectorite, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Propylene Carbonate. May Contain/Peut Contenir (+/-): Iron Oxides (Ci 77491, Ci 77492, Ci 77499), Titanium Dioxide (Ci 77891), Blue 1 Lake (Ci 42090), Ultramarines (Ci 77007), Manganese Violet (Ci 77742), Ferric Ammonium Ferrocyanide (Ci 77510).

Thru Line Waterproof Eyeliner Thru Line Waterproof Eyeliner Thru Line Waterproof Eyeliner Thru Line Waterproof Eyeliner Thru Line Waterproof Eyeliner Thru Line Waterproof Eyeliner Thru Line Waterproof Eyeliner Thru Line Waterproof Eyeliner Thru Line Waterproof Eyeliner Thru Line Waterproof Eyeliner

Thru Line Waterproof Eyeliner

Serif Serif Matte dark brown

Thru Line Waterproof Eyeliner

Up to 24-hour color. Safe for sensitive eyes.

Shades
Skin Tones

Thoughtfully Formulated

  • safe for sensitive eyes + waterline
  • ophthalmologist-tested
  • dermatologist-tested

Up to 24-hour wear.

Waterproof + sweatproof.

Safe for sensitive eyes.

Safe for the waterline.

Clinical Results

100%said it applies comfortably to lash line + waterline*

98%said it’s blendable + easy to control*

96%said it wears comfortably all day**

90%said it doesn't skip, drag, or tug*

Waterproof Eyeliner Ingredients

Omega Fatty Acids

Help support comfortable wear—even on the waterline.

Avocado Oil-Coated Pigments

Combine bold color with smooth, buttery glide.

Color Lock Film Formers

Lock in long-lasting + waterproof wear.

3 Ways to Wear


Line + Define

Sharpen the tip with the Dual Precision Sharpener, then glide along the lash line or waterline.

Smudge + Soften

Blend with the smudger side of the Angled Line + Smudge Brush for a soft, diffused effect. Work on one eye at a time—the formula sets quickly.

Wing It

Use the angled side of the brush to pull color out into a soft wing.

The Art of the Eye

Pair Thru Line with Eye Stylus and Limitless Lash for an artful look.

Paint

Prime your canvas with an all-over wash of Eye Stylus Shadow Stick.

Sketch

Line and define lids with a swipe of Thru Line Waterproof Eyeliner.

Frame

Frame your work of art with lengthening, lifting Limitless Lash Mascara.


Why We Love It

Rich, saturated color that glides smoothly and stays all day—even on sensitive eyes and the waterline.

Founder's Note

“Thru Line locks it all in. It’s long-lasting, it’s waterproof, it doesn’t smudge… even on my sensitive, hooded eyes.”

— Sasha

Recycle or Repurpose

How to keep your empty packaging out of the landfill.

  1. The outer carton is curbside-recyclable—drop it in your curbside bin.
  2. Once you’re done with the pencil, discard any shavings or remnants.
  3. Send the cap and base to Pact. Drop in your nearest collection bin, or download your free shipping label once you collect 10 empties.

FAQ

If we didn't answer your question, contact us.

Yes, Thru Line Waterproof Eyeliner is ophthalmologist-tested and safe for the waterline and sensitive eyes. The pigments are coated in avocado oil, so they glide on smoothly without dragging or tugging the delicate skin along the lash line and waterline. It applies comfortably whether you’re tightlining the upper lash line or lining the inner rim, and it stays put once it sets.

Thru Line is longwear waterproof eyeliner with up to 24-hour wear. Once it sets, the formula is smudge-resistant, transfer-resistant, sweatproof, and humidity-proof. It works well for sensitive eyes, hooded lids, or anyone whose liner tends to fade, smudge, or transfer. Apply and blend any soft or smoked-out looks quickly—after the formula sets, it locks into place for the full wear time.

Yes! Hooded eyes are one of the trickiest shapes for liner because the lid folds down and makes contact throughout the day, which causes most pencils to transfer and smudge. Thru Line is a smudge-resistant, transfer-resistant waterproof eyeliner pencil, so it stays exactly where it is applied. It’s the perfect everyday option for hooded, mature, or deep-set eyes, where long wear matters most.

Thru Line works with most eyeliner application techniques. You can tightline along the upper lash line for subtle definition, line the waterline for depth, draw a thin, precise line for a clean look, or blend it out for a smoky effect. Work quickly on any blended or smudged-out styles—the formula locks in for 24-hour wear once it sets.

Thru Line is formulated with sensitive eyes in mind, not just color. Avocado Oil-Coated Pigments and Omega Fatty Acids give the formula its smooth, tug-free glide for comfortable wear, even on the waterline. It’s also vegan, cruelty-free, and formulated without fragrance, gluten, or talc.

Thru Line comes in 10 shades in matte and shimmer finishes, so you can design everything from a natural daytime look to a lived-in smoky eye. The matte shades are perfect for clean, precise lines and tightlining, while the shimmer shades add subtle dimension along the lash line or inner corner. With shades that ranged from nuanced neutrals to rich jewel tones, there’s a color for most looks, skin tones, and preferences. Every shade is waterproof and safe for sensitive eyes.

Some waterproof eyeliner pencils trade comfort for performance, so they end up dragging, tugging, or irritating sensitive eyes. Thru Line is designed to do both. It combines up to 24-hour wear with an ophthalmologist-tested formula that’s safe for sensitive eyes and the waterline. The pigments are coated in avocado oil for smooth, non-irritating glide, and omega fatty acids help support comfortable wear on even the most delicate skin. The result is a long-wear, smudge-resistant, transfer-resistant liner that feels comfortable to wear.

4.8
Rated 4.8 out of 5 stars
Based on 236 reviews
236 reviews
  • Laura F.
    Verified Reviewer
    I recommend this product
    Skin Type Combination
    Skin Tone Neutral
    Undertone Olive
    Eye Color Brown
    Age Range 35-44
    Reviewed by An incentivized reviewer
    Reviewed By An incentivized reviewer
    Thru Line Waterproof Eyeliner Flourish
    Rated 4 out of 5 stars
    7/26/26
    Smooth Application

    I received this eye liner to try at no cost through PinchMe. I really like the color (Flourish) and I really liked that it applied really smoothly with very little pressure. It blended well in my eye corners. It has some great staging power once it's set, keeping a neat line on my lash line for 9 hours Unfortunately, as soon as I put it on, my nose got runny and my eyes started watering. Once I took some allergy meds, this went away. I think it's a very nice product, but depending on sensitivity may not be the best choice for everyone. I will continue to use this, I will just take some allergy meds ahead of doing my makeup. I have not sharpened it yet and hope it holds up well when it's needed.

  • Mary K.
    Verified Reviewer
    I recommend this product
    Skin Type Combination
    Skin Tone Neutral
    Undertone Olive
    Eye Color Green
    Age Range 35-44
    Reviewed by An incentivized reviewer
    Reviewed By An incentivized reviewer
    Thru Line Waterproof Eyeliner Abstract
    Rated 5 out of 5 stars
    7/24/26
    Compliments My eye color

    I got this as a free product sample from pinch Me. I absolutely love the Abstract color in this eyeliner because it really compliments My green eyes. It goes on smooth, and did not smudge even in the high heat and humidity that e have been having in PA recently.

  • Tina
    Verified Reviewer
    I recommend this product
    Skin Type Combination
    Skin Tone Olive
    Undertone Neutral
    Eye Color Brown
    Age Range 45-54
    Reviewed by An incentivized reviewer
    Reviewed By An incentivized reviewer
    Thru Line Waterproof Eyeliner Serif
    Rated 5 out of 5 stars
    7/22/26
    Waterproof eyeliner

    I received the ILIA thru line waterproof eyeliner free from PINCHme in exchange for my honest opinion. I received the color serif. This eyeliner glides on so smooth no tugging and lasts all day. I love that this eyeliner washes off easily. The color is a beautiful deep brown color almost black looking. The deepest brown color I love it.

  • Lee
    Verified Reviewer
    I recommend this product
    Skin Type Combination
    Skin Tone Neutral
    Undertone Cool
    Eye Color Green
    Age Range 35-44
    Reviewed by An incentivized reviewer
    Reviewed By An incentivized reviewer
    Thru Line Waterproof Eyeliner Hyperreal
    Rated 4 out of 5 stars
    7/22/26
    ILIA eyeliner in Hyperreal

    I received a full sized ILIA Thru Line Waterproof Eyeliner in Hyperreal with Up to 24-Hour Wear from Pinchme in exchange for my honest review. I love the color it works perfectly on the waterline. The eyeliner is nice and glides on smooth. All in all highly recommend!

  • Kim
    Verified Reviewer
    I recommend this product
    Skin Type Dry
    Skin Tone Warm
    Undertone Warm
    Eye Color Brown
    Age Range 55-64
    Reviewed by An incentivized reviewer
    Reviewed By An incentivized reviewer
    Thru Line Waterproof Eyeliner Ink
    Rated 5 out of 5 stars
    7/22/26
    Easy glide, very little smudging

    I received the color Ink to review as a promotion and I tested it over a number of days. I tightline because I have downturned eyes which tend to water and I wanted to test this out in real life. The eyeliner goes on very smoothly and didn’t tug at my eye. It also was gentle and didn’t irritate my eyes. I wore it for over 8 hours and had a little smudging at the outer corner of my eyes which was great! It did take a good eye makeup remover to get it completely off too. Extremely smooth formula, no scent and no eye irritation even so close to my eye. Definite recommend from me.

Waterproof Eyeliner for Waterline and Sensitive Eyes

Thru Line Waterproof Eyeliner is a waterproof eyeliner with up to 24-hour wear that’s ophthalmologist-tested and safe for sensitive eyes and the waterline. The formula is smudge-resistant, transfer-resistant, and sweatproof, with Avocado Oil-Coated Pigments that glide on without dragging or tugging. Omega Fatty Acids help support comfortable wear, even on the delicate waterline. Available in 10 shades with matte and shimmer finishes. Vegan, cruelty-free, and formulated without fragrance or gluten. Pair it with Eye Stylus Shadow Stick, Limitless Lash Mascara, or explore the full ILIA eye collection.