KATE
KATE Double Line Expert (LB-1)
KATE Double Line Expert (LB-1)
@cosme rating: 5.2/7.0
Add a little extra line to fake shadows around the eyes for bigger eyes
✓ 100% authentic
✓ Ships from Japan in 3-5 days
✓ Duties prepaid for US orders
✓ Tracked delivery via Japan Post
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What it is
Ultra-thin* Brown shadow lines are drawn to create larger eye area. *Easy to apply with ultra-fine brush pen type *Ultra-thin* Brown gives a natural finish, like a thin shadow. *Within the brand
Ingredients
How to use
Just apply it where you want shadow for a delicate, natural finish. If the liquid is smudged and difficult to apply, use tissue paper or similar to press the base of the brush to blend the liquid before use. [Incision Line] (1) Applying a line that extends slightly beyond the inner corner of the eye will widen the eyes and create a larger, more defined look. (2) After applying (1), draw a lower line in a "U" shape along the edge of the eye to further emphasize the width of the eyes. [Double Eyelid Line] (1) Drawing a line along the double eyelid line will clearly emphasize the crease. (2) Drawing a double eyelid line parallel to the longer eyeliner will create a wider, more defined look. If using double eyelid glue, apply after applying the glue. [Tear Bag Line] (1) Draw a line below the tear bag and blend with your finger to create a more three-dimensional look.
We ship internationally from Japan!
Frequently Asked Questions
Is this authentic?
Yes. Every item is bought from an official seller in Japan, or direct from the brand for pre-orders,
never from resellers or grey market stock. Counterfeits and grey market listings are a real problem in
Asian beauty online, and buying only through official channels is how we rule it out.
What are your shipping rates?
On orders under US$75, shipping is a flat US$20 to the United States and US$10 to all other countries.
Orders of US$75 or more ship free, applied automatically at checkout. Your exact shipping cost is shown before you pay.
How long does delivery take?
These estimates are for International Airmail (Tracked) and include 3 to 5 business days of processing in Japan.
- United States: 12 to 15 business days
- Canada, United Kingdom, France, Germany: 9 to 12 business days
- Australia, New Zealand, Denmark, Finland, India, Indonesia, Italy, Netherlands, Spain, Sweden, Switzerland: 10 to 13 business days
- China, Hong Kong, Malaysia, Singapore, South Korea, Taiwan, Thailand, Vietnam: 8 to 10 business days
- Rest of the world: 11 to 18 business days
Actual delivery can be affected by customs clearance, seasonal congestion, or carrier delays in the destination country, all of which are outside our control.
Do you offer express shipping?
Yes. As of 22 July 2026, we offer International Express Mail through Japan Post. The cost is based on order weight and is calculated automatically at checkout.
Will I pay customs or import fees?
US orders: No. As of July 1, 2026, all US orders ship DDP (duties delivered prepaid), meaning we prepay all import duties on our end. Nothing is due at your door.
Orders outside the US: Possibly. Duties and import taxes are set by your local customs authority and are not collected at checkout, so any charges on delivery are your responsibility.
We're working on rolling out prepaid duties for more countries soon.
Perfect for under-eye bags!
I purchased LB-1 Ultra Light Brown and GY-1 Ultra Light Greige. I've been using Ultra Light Brown since the Double Line Faker, the product before the redesign. The tip is thinner than with Double Line Faker, making it easier to use. GY-1 Ultra Light Greige in particular is an eyeliner that can subtly and naturally create double eyelids and shadows around the under-eye bags. Because the tip is thinner, it requires frequent maintenance, but... I personally find it useful for drawing my eyebrows. I don't have any hair at the end of my eyebrows, so they disappear even when I apply makeup. Since this product is intended for the eye area, where makeup is prone to smudging, it lasts well and keeps the end of my eyebrows in place even if I can't touch up my makeup for a long time. This is not the manufacturer's recommended usage method, but please use it as a reference.
I don't have many under-eye bags, so I bought this to help with them. Maybe it's because of my lack of skill, but I'm still not good at drawing them.
This is a repeat purchase! I mainly use it to shade my under-eye bags. The color is naturally light, so it doesn't seem like it will smudge or turn black over time.
I use it to lengthen the width of my double eyelids. It lasts well and has a natural shadow color, so it's easy to use. I've already bought it several times.