
Double Line Expert Eyeliner LB-1 Ultra-Thin Brown
Ultra-fine brush pen liner that fakes a natural double-eyelid crease in sheer brown.
- From JapanJP-Direct
- AuthenticVerified
- 10–14 daysDelivery
An ultra-fine brush pen that fakes a natural double-eyelid crease or tear-trough shadow in one thin stroke.
About this product
KATE Double Line Expert is a pen-type liquid eyeliner with an ultra-fine brush, made to draw in a faint double-eyelid crease, tear-trough line, or outer-corner shadow so subtly it looks like your own natural shading. LB-1 is the signature ultra-thin brown shade Japanese makeup fans reach for to widen the eyes without an obvious drawn-on line.
How to use
- Shake lightly and glide the ultra-fine brush tip along the crease where you want a double-eyelid line or tear-trough shadow to appear.
- Draw a thin line just above your natural lash line for a subtle eye-corner extension, blending the tip if needed for a softer shadow effect.
- Let dry for a few seconds before blinking; layer a second faint pass only if you want more definition.
Ingredients
- Water & BG — Lightweight solvent base for a smooth, fine-line liquid texture.
- Acrylates Copolymer Ammonium — Film-forming polymer that helps the ultra-thin line stay put and resist smudging through the day.
- Behenes-30 — Emulsifier that keeps the formula stable and gliding evenly off the fine brush tip.
- Polyglyceryl-3 Disiloxane Dimethicone — Silicone conditioning agent for a smooth, skip-free application.
FAQ
Will this look like an obvious drawn-on line?
LB-1 is formulated as an ultra-thin, sheer brown specifically so the line reads as a soft natural shadow rather than a bold liner stroke.
Can I use it for tear-trough (under-eye) definition as well as double eyelids?
Yes — the fine brush tip is designed for both upper crease lines and under-eye tear-trough shading.
Is it long-wearing in humid weather?
KATE markets Double Line Expert as long-wearing; as with any liquid liner, set with translucent powder in humid weather for extra hold.
🇺🇸 For US customers
This is the classic J-beauty 'fake double eyelid' liner that took off across Asian beauty forums and r/AsianBeauty — a category the US market doesn't really have an equivalent for. LB-1's ultra-fine brush and sheer brown tone let you draw in a crease, tear-trough shadow, or subtle outer-corner line with the precision Japanese drugstore brands are known for.