Does summer heat smudge your eyeliner by noon? Sweat and humidity can ruin your makeup, but Korean eyeliners are built to stay put. Known for their waterproof, smudge-proof formulas, K-beauty eyeliners deliver sharp, vibrant looks that last through summer’s stickiest days.

I tested dozens and picked three top performers for summer that glide on easily, resist sweat, and suit all skill levels. Ready for flawless summer makeup? Here are my top Korean eyeliner picks!

1. Clio Sharp So Simple Waterproof Pen Liner

Clio’s Sharp So Simple Waterproof Pen Liner is a K-beauty staple for its ultra-fine 2mm felt tip and jet-black pigment. Its waterproof, sweat-proof formula stays put for ~12 hours, perfect for summer festivals or beach days.

I drew a sharp wing in seconds, and it didn’t budge during a humid 32°C day, aligning with online buzz about its staying power. The pen’s ergonomic design is beginner-friendly, and the ink flows smoothly without skipping, based on user feedback. This Korean Eyeliner is available in black and brown for versatile looks.

• Key Features: 2mm felt tip, waterproof, smudge-proof, 12-hour wear, carbon black pigment.
• Best for: Precise cat-eye wings.

2. Etude House Drawing Show Brush Eyeliner

Etude House’s Drawing Show Brush Eyeliner is a soft brush tip and a “Perfect Fitting Polymer” for sweat- and water-resistant wear, ideal for summer’s heat.

I tested the black shade, creating both thin, tight lines and bold flicks, and it held up through a sweaty workout, matching beauty blog praise for its flexibility. The quick-drying formula prevents smudging, and the lightweight pen is easy to control. It is Available in black and brown for daily or dramatic looks.

• Key Features: Soft brush tip, sweat- and water-resistant, quick-drying, versatile for thin or thick lines.
• Best for: Versatile line thickness.

3. BBIA Last Auto Gel Eyeliner

BBIA’s Last Auto Gel Eyeliner is a pencil with a creamy, sebum- and sweat-resistant formula, perfect for subtle summer looks. The 2mm tip glides smoothly for precise tightlining or soft wings, and its multi-proof technology kept my lines clean during a humid hike.

I used the S3 Rose Brown shade for a natural vibe, and it lasted ~10 hours without flaking. The twist-up design and built-in sharpener add convenience, making it a budget-friendly gem.

• Key Features: 2mm gel pencil, sebum- and sweat-resistant, creamy texture, built-in sharpener, five shades.
• Best for: Natural, smudge-free definition.

How to Apply Korean Eyeliners

• Prep: Apply an eye primer to reduce oiliness and enhance longevity, especially for monolids.
• Apply: For Clio, use light pressure for thin lines or firmer pressure for bold wings. Etude’s brush tip allows varied thickness—start at the inner corner and flick outward. BBIA’s pencil is great for tightlining; glide along the upper lash line or waterline.
• Set: Let liquid liners (Clio, Etude) dry for 10 seconds to avoid smudging. Use a clean Q-tip to fix mistakes.
• Remove: Use an oil-based makeup remover to gently dissolve waterproof formulas, avoiding tugging.

Tip: Pair with waterproof mascara for a full summer-proof eye look. Store pens tip-down to keep ink flowing, per my experience.

FAQs About Korean Eyeliners

1. Are these eyeliners safe for sensitive eyes?
→ Yes, all three are free of harsh chemicals like parabens and are gentle on delicate eye areas. Patch-test if very sensitive.

2. Can they withstand swimming or sweating?
→ Absolutely! Clio and Etude are waterproof and sweat-proof, while BBIA resists sebum and sweat.

3. Are they beginner-friendly?
→ Yes, Clio’s felt-tip and BBIA’s pencil are easy for novices, while Etude’s brush suits those comfortable with liquid liners.

4. How do I remove waterproof eyeliners?
→ Use an oil-based makeup remover or micellar water to gently dissolve the formula, avoiding irritation.

5. Will they smudge on oily lids?
→ No, their sebum-resistant formulas are designed for oily skin and monolids, staying put all day.

6. How long do they last per use?
→ Clio and Etude last ~12 hours, BBIA ~10 hours.

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