Koji Eyelash Curler Review: Worth The Hype?
If your lashes point straight down and drop flat by lunchtime, you already know the frustration. Most curlers give you a bent kink instead of a soft lift. The Koji No.73 promises a wide, one-squeeze curl built around the shape of Japanese eyelids.
I tested it for six weeks as a bridal makeup artist, on myself and on clients, to see if that promise holds up in real life.
This review is honest and hands-on. I curl lashes almost every single day, so I know how a tool should feel after the novelty wears off. Below you’ll find my full take, plus who should skip it.
In A Nutshell
- Wide 34mm frame: The No.73 catches nearly all your lashes in one pass, which speeds up your routine on busy mornings.
- Best for monolids and hooded eyes: The flatter curve sits close to the lash line and grabs stubborn inner and middle lashes.
- Gentle pressure: The bouncy silicone pad gives a strong curl with light finger effort, so you avoid the harsh pinch of drugstore tools.
- Instant, dramatic lift: Reviewers consistently mention a wide-eyed C-curl after a single squeeze.
- Not for round or deep-set eyes: The width and depth can miss lashes or press the brow bone uncomfortably.
- Budget-friendly: It sits well below the price of Shu Uemura or Shiseido while performing close to them.
What Makes The Koji No.73 Different
The headline feature is width. At 34mm across, the frame is noticeably wider than a standard curler. That means fewer repositioning moves to catch your outer and inner corners.
- Give your lashes the professional look with a curler that adds dimension and depth to your eyes.
- Japan Health and Beauty.
Last update on 2026-07-23 / Affiliate links / Images from Amazon Product Advertising API Some of the links on this website are affiliate links, which means that at no additional cost to you, I earn a commission if you click through and make a purchase. I only recommend products and services that I believe will add value to my readers. Thank you for your support!
Koji designed the curve to match the average Japanese eyelid, which tends to be flatter and less deep-set. This is why it works so well for monolids and Asian eye shapes.
The silicone pad is the second detail. It feels springy under pressure and rebounds quickly. You don’t need to clamp hard, which lowers the risk of that flat, cardboard-crease look.
The Unboxing Experience
There’s nothing fancy here, and honestly that’s fine. It arrives in a simple printed cardboard sleeve with Japanese text and the Koji branding on the front. No plastic clamshell, no extra padding.
Inside you get the curler and one spare silicone refill pad tucked into the packaging. I always appreciate a spare, since pads flatten over months of use.
The tool itself feels lighter than I expected. It’s mostly metal with a plastic-and-metal scissor handle. It reads as practical rather than luxe, which suits the price point.
How It Feels In The Hand
The finger loops are a comfortable size for me, and I have fairly small hands. They didn’t dig in or feel cramped during longer sessions on clients.
The hinge has a smooth, light action. One reviewer described it as “bouncy,” and I agree completely. You press gently and the pad does the work.
That said, the handle is not the sturdiest I’ve owned. It doesn’t feel like it would survive being dropped repeatedly or tossed loose in a kit. Treat it with a little care.
The Curl Payoff
This is where the No.73 earns its reputation. On my own downward-pointing lashes, a single squeeze at the base produced a clear, lifted C-curl with no tugging.
The wide frame genuinely helped. I caught my inner lashes and middle lashes in one go, which usually takes me two or three repositions with other curlers.
Real feedback echoes this. Users describe an instant, dramatic lift and say their “eyes look more awake in one squeeze.” A few noted the curl can look slightly dented if you clamp too high, so keep it right at the lash line.
Top 3 Alternatives For Koji No.73
If the width or curve doesn’t suit your eye shape, these three are the tools I most often recommend as swaps. Each one fits a different eye type.
Shiseido Eyelash Curler
- AWARD-WINNING EYELASH CURLER - The #1 eyelash curler in the U.S. crimps & curls lashes to perfection. Its broad curve grabs every last lash, no matter the eye shape, for the perfect, eye-framing fringe.
- EDGE-FREE DESIGN - The edge-free design prevents pinching for an eye-opening, glamorous curl. Plus, the flexible silicone rubber pads are gentle and safe to use on lashes. The curler comes with one replacement silicone pad.
Last update on 2026-06-06 / Affiliate links / Images from Amazon Product Advertising API Some of the links on this website are affiliate links, which means that at no additional cost to you, I earn a commission if you click through and make a purchase. I only recommend products and services that I believe will add value to my readers. Thank you for your support!
Shu Uemura Iconic Eyelash Curler
- The iconic Shu Uemura curler is one of the most famous beauty secrets of the industry, loved by celebrities, fashion designers, and many top makeup artists for its precise control and optimum, long-lasting curl
- Featuring a unique design born from Shu Uemura’s professional expertise, it covers the entire lash line from the roots, captures every single lash, and curls even stubbornly straight lashes
Last update on 2026-07-23 / Affiliate links / Images from Amazon Product Advertising API Some of the links on this website are affiliate links, which means that at no additional cost to you, I earn a commission if you click through and make a purchase. I only recommend products and services that I believe will add value to my readers. Thank you for your support!
Koji Curving Eyelash Curler
- An eyelash curler of a carving frame design that measured the shape of a Japanese female eyelid and pursued a more fitting form
- Arcuate carving frame spreads eyelashes radially and finishes curved curl upward one by one
Last update on 2026-06-07 / Affiliate links / Images from Amazon Product Advertising API Some of the links on this website are affiliate links, which means that at no additional cost to you, I earn a commission if you click through and make a purchase. I only recommend products and services that I believe will add value to my readers. Thank you for your support!
The Shiseido suits wider, flatter eyes and takes universal refill pads. The Shu Uemura is a pro favorite for deep-set and small eyes. The Koji Curving model has a more sculpted frame for those who find the No.73 too flat.
Who This Curler Is Best For
I’d hand this to anyone with monolids, hooded lids, or straight, stubborn lashes. The flat curve and wide frame are made for exactly this challenge.
It also suits people who want speed. If you’re tired of curling in three separate sections, the width cuts your routine down.
Beginners will like the forgiving, light pressure too. It’s hard to over-clamp and pinch yourself, which is a common fear with new curlers.
Who Should Skip It
Let me be direct, because eye shape matters more than any marketing claim. If you have round, prominent, or deep-set eyes, this may frustrate you.
One detailed reviewer with deep-set eyes found the curve too flat and couldn’t catch her middle lashes without pressing her eyeball inward. That’s a real limitation, not a fluke.
The frame is also wide enough that some people press the metal against their brow bone or skin. If your eyes are close-set or small, a half-size curler will serve you better.
The Honest Downsides
No tool is perfect, and I’d rather you know the flaws now. First, the build quality is middling. It works well, but it doesn’t feel premium or indestructible.
Second, the dented curl issue is real if your technique is off. Clamping too high or too hard creates a sharp kink instead of a smooth lift. This takes a few tries to master.
Third, replacement pads can be hard to source outside Japan. Koji pads aren’t as widely stocked as Shiseido refills, so stock up if you find them.
How It Compares To The Pricier Options
I own the Shu Uemura and the Shiseido, so I can speak to this honestly. The Shu gives the most reliable strong curl and catches about 95% of lashes on the first pass for many users, but it costs far more and the metal can snap after a few years.
The Shiseido is smoother and takes cheap refill pads, but some find it too flat for a dramatic look. The Koji sits between them on performance while costing much less.
For the money, the No.73 punches well above its price. You lose a little polish and longevity, not much curl quality.
My Verdict After Six Weeks
I kept reaching for it, which is the truest test I have. On the right eye shape, the No.73 delivers a fast, lifted curl that rivals tools three times the price.
It won’t fix a mismatch with your eyes, though. Curler success is 90% eye shape, so measure your needs honestly before buying.
If you have monolids or flat, stubborn lashes and want an affordable daily workhorse, this is an easy recommendation. If your eyes are round or deep-set, look at the alternatives above instead.
Frequently Asked Questions
Does the Koji No.73 fit all eye shapes?
No. It’s built for flatter, less deep-set lids, which makes it ideal for monolids and hooded eyes. Round, prominent, or deep-set eyes often find the curve too flat to catch every lash.
Will it pinch my eyelid or skin?
The light, bouncy pressure makes pinching unlikely for most people. The risk rises only if your eyes are very small or close-set, since the wide frame can press the surrounding skin.
Can I replace the silicone pad?
Yes, and one spare pad comes in the box. Just note that Koji refills are harder to find outside Japan, so buy extras when you see them in stock.
How do I avoid a dented or kinked curl?
Clamp right at the base of your lash line, not halfway up, and use gentle pressure. Holding it too high or squeezing too hard is what creates that sharp crease.
Is it better than the Shiseido or Shu Uemura?
It depends on your eyes and budget. The Koji offers close performance at a much lower price, while the pricier tools win on build quality and refill availability.
How do I curl my corner lashes with it?
Curl the middle first, then keep the curler in place and tilt it left and right to catch the corners. This trick works well thanks to the wide frame.
Hi, I’m Julia Knight, a tattoo enthusiast and expert in tattoo trends. With a passion for art and self-expression, I’ve been fascinated by the world of tattoos for years. On this blog, I share my knowledge and insights on the latest tattoo designs, trends, and techniques. When I’m not writing, you can find me exploring new tattoo artists, attending tattoo conventions, or getting inked myself!