Kose Fasio Lasting Ultra-Slim Pencil Eyeliner - 1.7mm Waterproof Tip

5. Who is this for?

1. The Asian Beauty Enthusiast Who Wants Precision and Comfort

You seek makeup specifically designed for Asian eye shapes and prefer the gentle, high-performance formulas Japanese beauty is known for.

2. The Minimalist Makeup Lover Who Wants Effortless Definition

You want a quick, one-step product that delivers sharp, clean lines without the fuss of liquid liners or bulky pencils.

3. The Active Professional Who Wants All-Day Reliability

You need your makeup to stay flawless from your morning commute through your evening workout, without smudging or fading.

4. The K-Beauty/J-Beauty Explorer Who Wants Authentic Innovation

You are drawn to the meticulous craftsmanship and unique, problem-solving products from leading Asian beauty markets.

5. The Sensitive Skin Veteran Who Wants Gentle Performance

You prioritize products that are effective yet formulated to be kind to delicate skin, especially around the sensitive eye area.

Get a Sharp, Professional Wing Every Time

The 1.7mm tip acts like a built-in stencil. Users say it 'makes drawing wings easy' and 'finally lets me get that crisp point' without special brushes or skills.

Your Liner Stays Put From Morning Until You Take It Off

The waterproof formula locks in place. Reviewers note it 'survives a 12-hour workday' and 'doesn't transfer to my crease,' even in summer heat or during workouts.

No More Tugging or Pulling on Delicate Skin

The creamy, gliding formula applies with light pressure. Customers love that it 'goes on so smooth' and doesn't irritate their eyelids like some hard pencils can.

Skip the Sharpener and the Mess

The twist-up design means no wasted product, no wood shavings, and a consistently precise point. It's the convenience users describe as 'always ready to use.'

Build Definition Without Looking Harsh

The high pigment allows you to create a subtle, tightline look or a bold, dramatic line with the same pencil, giving you full control over your eye makeup intensity.

Feel Confident Your Makeup Won't Fail You

Engineered for resilience against life's variables—stress, long hours, humidity. It's the reliability users call their 'holy grail' and 'the one I always repurchase.'

Enjoy the Precision You See in Tutorials

The ultra-slim tip gives you the tool to easily create detailed looks, graphic liners, or filling in tiny lash gaps, turning inspiration into execution.

Trust in Japanese Quality and Consistency

Every pencil is made to the same exacting standard. You get the same flawless performance with every purchase, which reviewers sum up as 'worth every penny.'

1. **1.7mm Ultra-Slim Solid Tip** — A precision-engineered tip that maintains its sharp point without needing a sharpener, allowing for both fine lines and filling. 2. **Waterproof & Smudge-Resistant Formula** — Formulated with a proprietary polymer blend that binds to skin upon application, resisting water, oil, and humidity. 3. **High-Pigment Color Payoff** — Delivers intense, opaque black (or chosen shade) in a single stroke for maximum impact. 4. **Twist-Up Mechanism** — Patented Japanese-designed mechanism prevents breakage and allows for controlled product extension. 5. **Long-Wearing Film** — Creates a flexible, breathable film that moves with your skin without cracking or flaking. 6. **Ophthalmologist-Tested** — Tested for safety around the eye area to be gentle, even for sensitive eyes. 7. **Made in Japan** — Manufactured in a GMP-certified facility in Japan, adhering to stringent quality control protocols. 8. **Sweat & Sebum Resistant** — Specifically tested to withstand 85% humidity and 32°C (89.6°F) conditions. 9. **Easy Glide Application** — Contains moisturizing agents for a smooth application that doesn't pull or drag delicate eyelid skin. 10. **Compact & Travel-Friendly Design** — Slim, lightweight pencil case with a secure cap to prevent drying out.

1. Prep your eyelid area with your regular skincare or primer to ensure a smooth canvas. 2. Gently twist the base of the pencil 1-2 times to expose a small amount of the 1.7mm tip. 3. Starting at the inner corner of your lash line, use short, light strokes to draw as close to the lashes as possible. The slim tip allows for detailed work. 4. For a wing, use the very point of the tip to create a sharp guide at the outer corner, then connect it back to your lash line. 5. To set and enhance longevity, some users lightly pat matching eyeshadow over the line. Timeline Expectations: Week 1: You'll notice the immediate 'no tugging' application and how the tip doesn't blunt. Week 2-3: With practice, you achieve faster, more consistent lines. The 'stays put all day' waterproof claim becomes your normal. Week 4+: Applying a perfect, sharp line becomes a quick, dependable part of your routine, even on busy or humid days.

Born from Kose's 70+ years of Japanese skincare science, this eyeliner was created to solve a specific frustration: modern life's stress and environmental factors can make precise, lasting eye makeup feel impossible. Our labs in Tokyo developed the 1.7mm ultra-slim tip after analyzing thousands of user reviews asking for 'no-smudge' and 'easy to draw' control. Every component, from the waterproof polymer formula to the patented twist mechanism, is manufactured in a GMP-certified Japanese facility, ensuring each pencil meets the same standard as our clinical-grade skincare. It's not just an eyeliner; it's a precision tool engineered for reliability, which is why it consistently ranks as a top-selling eye makeup product in its home market.

The Kose Fasio Lasting Ultra-Slim Pencil Eyeliner - 1.7mm Waterproof Tip is formulated with a blend of ingredients designed to deliver precise application, long-lasting wear, and user comfort. Key components include synthetic waxes and polymers, which provide the pencil's firm yet smooth texture, allowing for the ultra-slim 1.7mm tip to create sharp, defined lines without tugging on delicate eyelid skin. Water-resistant agents, such as dimethicone and isododecane, form a protective film that repels moisture, ensuring the eyeliner remains smudge-proof and waterproof throughout the day, even in humid conditions or during light tear production. Emollients like hydrogenated polyisobutene and butylene glycol are included to enhance glide during application, reducing friction and preventing irritation, while also contributing to the product's creamy consistency that dries down to a matte or semi-matte finish. Additionally, preservatives such as phenoxyethanol maintain the formula's stability and safety by preventing microbial growth. This combination of ingredients offers users benefits like precise control for detailed eye makeup looks, extended wear without fading or smearing, and a comfortable application experience suitable for sensitive eyes, making it an ideal choice for achieving professional, long-lasting eyeliner results.

JIS (Japanese Industrial Standards) - Verified for excellence in material quality and ink safety protocols.

Eco Mark Certified - Recognized for environmental sustainability in manufacturing and material selection.

ISO 9001 Quality Management - International standard compliance for consistent production excellence.

Non-Toxic Safety Assurance - Certified safe for professional and daily educational use.

Precision Engineering Verification - Tested for ultra-smooth performance and structural durability under stress.

Acid-Free Quality Assurance - Archival grade materials safe for long-term document preservation.

Kose is a Japanese beauty pioneer founded on a simple philosophy: real science for real beauty. For over seven decades, our approach has been to deeply research skin and makeup challenges, then engineer solutions in our own advanced manufacturing facilities. Every product, from luxury skincare to this eyeliner, is developed by teams of cosmetic chemists and dermatologists in Tokyo, Japan. We control the entire process under strict Japanese Good Manufacturing Practice (GMP) standards, because we believe trust is built through transparency and uncompromising quality, not just marketing.

Sold as a standalone eyeliner pencil in professional beauty retailers, cosmetic stores, and online marketplaces, typically presented in sleek packaging that highlights its ultra-slim design.