INOUI
INOUI Liquid Eyeliner (01 Natural Black)
INOUI Liquid Eyeliner (01 Natural Black)
@cosme rating: 5.4/7.0
Eyeliner that creates a striking eye look with a light blurring effect
✓ 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
This eyeliner creates a natural yet striking look with a light blurring effect that blends naturally with your own eye shadow, shape, and pupils. It is resistant to rubbing and tears. Waterproof type. A long-lasting type that provides a beautiful finish all day. 3-hour finish duration data obtained. according to manufacturer. Results may vary from person to person. .
Ingredients
Water, Ammonium Acrylates Copolymer, Butylene Glycol, 1,2-Hexanediol, Microcrystalline Cellulose, Xanthan Gum, Sodium Hyaluronate, PEG-60 Hydrogenated Castor Oil, Squalane, Soluble Collagen, Beheneth-30, Glycerin, Aluminum Hydroxide, Polyglyceryl-3 Disiloxane Dimethicone, Cellulose Gum, Aminopropyl Betaine, Citric Acid, Panthenol, Sorbitan Sesquiisostearate, Polyglyceryl-2 Triisostearate, Tocopherol, Polyglyceryl-10 Myristate, Polyglyceryl-10 Stearate, Polyglyceryl-2 Diisostearate, Phenoxyethanol, Methylparaben, Ethylparaben, Titanium Dioxide, Iron Oxides, Carbon Black, Mica, Red 227, Yellow 4, Blue 1
How to use
Use the tip of the brush to draw a line along the edge of your eye. When using for the first time, or if the brush tip is cracked and difficult to use, press the push button several times to distribute the liquid evenly throughout the brush, then smooth the tip with tissue paper before use. Using eyeshadow over it may cause the liquid to be difficult to dispense, so we recommend using it first. If the line becomes faint and difficult to draw, replace the cap and shake the container several times. Then, remove the cap and press the push button several times to fully soak the brush tip. Insert the cartridge into the holder. (1) Remove the cap and turn the holder to remove the tip from the container. (2) Insert the silver ball end of the cartridge firmly into the tip, ensuring there are no gaps, and then insert it back into the container. Close the cap and shake the container several times. (3) Remove the cap and loosen the brush tip. With the brush tip facing downwards, press the push button all the way down and hold for approximately 2 seconds. Repeat this process approximately 20 times to thoroughly distribute the liquid throughout the brush tip. (The number of pushes may vary depending on how you press the button.) It may take some time for the liquid to fully distribute throughout the brush, so be careful not to press the push button too hard. <Usage Precautions> . Always close the cap after use. Because the brush dries quickly, even with the cap closed, if it is left unused for an extended period of time or if eye shadow or other cosmetics are left on it, the brush tip may dry out and become hard, making it difficult to use. In this case, slowly press the push button several times to fully soak the brush tip in the liquid, then carefully wipe the brush tip with tissue paper. Be careful not to get it in your eyes. If it does get in your eyes, rinse immediately. Fluctuations in temperature or air pressure (such as on an airplane) may cause the liquid to overflow during use. If the liquid overflows from the brush tip, wipe off the excess liquid with tissue paper and reshape the brush tip before use. .If you press the push button several times when the brush has hardened or when the brush tip is fully saturated with liquid, liquid may accumulate at the base of the brush and come out, so please be careful not to let the liquid drip when using. .If you push the button with the cap on, the liquid may overflow. .When closing the cap, be careful not to pinch the brush tip. .When the cartridge is empty, immediately replace it with a new one (sold separately). Leaving the cartridge empty will cause the brush tip to dry out and become unusable. .Do not store in direct sunlight or in a high temperature area. .Do not wash the brush tip with water. .If the cartridge does not fit smoothly or the feel or finish of the product deteriorates, purchase a new product. .When replacing the cartridge, please use an Inwi Eyeliner Liquid cartridge.
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.
It's easy to draw a consistent line. It's perfect for drawing thick eyeliner. However, the line at the outer corner of my eye disappears over time. I'm currently searching for something that lasts longer.
I bought it because it was cheap and I thought it could be used for eyebrows too. I think it's great value for money.
I used to use a brown eyeliner from Credo, but as I've gotten older, browns have started to feel too bold, so I tried this product in store and found it to be a very natural brown, so I decided to buy it. I've been using it ever since, and it stopped working, so I rarely had time to go to the store. When I saw it on Suzykirei, I thought, "Yes!" and used my points to buy it. It's a consistent, calm, natural brown, so it's easy to use and pairs well with the eyeshadows I already have. I recently purchased a cartridge, but the last time I used it, a large amount of liquid spilled out and stained my rug, so I was shocked that the same thing happened again. Maybe it was my fault for replacing it... but as a product, it's truly impeccable.
I bought this because I'm having a hard time getting the hang of using MAC's flat eyeliner brush. It's thicker than I thought it would be, so it looks like you'll need some skill to apply a thin eyeliner. However, the bristles are soft and yet hold powder well, so I was surprised at how beautiful the color came out when I applied black eyeshadow to the outer corner of my eye. If you have a little more skill, I think this brush is very easy to use.
I have large, double eyelid eyes, so makeup tends to be heavy and eyeliner can make my eyes look harsh. I just use this to add a darker color, so I'm glad I bought it.