GENiS TECHNIQUES
GENiS TECHNIQUES Line Boost (Best Brown), 0.55ml
GENiS TECHNIQUES Line Boost (Best Brown), 0.55ml
Rated 5.2 out of 7.0 by Japan’s largest beauty community
An evolved eyeliner made from eyelash serum
✓ 100% AUTHENTIC, SHIPS FROM JAPAN
✓ DUTIES & TAXES INCLUDED FOR US ORDERS
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What it is
[POINT 1] This serum liner contains 70% serum ingredients, providing care for both your eyes and lashes. Eye care ingredients: Exosomes*1, Rice Fermentation Solution*2. Eyelash care ingredients: SimLash*3, Panthenol*4, Swertia japonica extract*2, Silk extract*4. [POINT 2] Packed with professional techniques for incredibly easy application. Anti-shake design with a weight for stable lines. The ergonomic design incorporates a weight into the container, ensuring a comfortable fit and a stable line. Anti-smudge design (Air Pressure Control System) controls the air pressure inside the container, ensuring smooth ink delivery to the brush and reducing smudges. Create delicate lines with ease. Features ultra-fine 0.1mm bristles. Draw delicate lines even at the outer corners and edges of your eyes. No technique required. [POINT 3] Focused on ease of use. This serum liner dries quickly, adheres well, and resists smudging, while still delivering intense, rich color. Highly water-resistant, it can withstand sweat and tears. Stays on, yet is easy to remove. Eyeliners that are difficult to remove can cause a lot of strain due to friction. Line Boost is designed to come off easily with warm water and no friction. [POINT: 4] Special color Matte finish GENiS deliberately chooses a matte finish, so the lines don't stand out too clearly and blend naturally with the eyes. The perfect solution for adult makeup. Made with Japanese-made Kishu Binchotan "charcoal ink" - Less pigmentation - Soft matte texture - Color that blends in with the eyes *1: Human adipose-derived mesenchymal cell exosomes *2: Formulated for: Moisturizing *3: Inclecis Galbana extract *4: Hydrolyzed silk
Ingredients
How to use
When using for the first time or if you leave the brush tip facing upwards, the color may not come out easily. In this case, test the color on the back of your hand or tissue paper before using.
We ship internationally from Japan!
Frequently Asked Questions
Is this authentic?
Yes. We only buy from official retailers and directly from the brands here in Japan. Never resellers, never grey market stock.
We are beauty lovers too, so we know the worry, especially with something you are putting on your face. Authenticity is 100% guaranteed by us.
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.