ONEPEN
ONEPEN Nail Serum, 2.0ml
ONEPEN Nail Serum, 2.0ml
Rated 4.5 out of 7.0 by Japan’s largest beauty community
All-in-one serum for bare nail care
✓ 100% AUTHENTIC, SHIPS FROM JAPAN
✓ DUTIES & TAXES INCLUDED FOR US ORDERS
Couldn't load pickup availability
What it is
This nail repair serum is perfect for those worrisome nail problems. The serum repairs damaged nails, leaving them smooth and beautiful. This one product contains repair, protection, moisturizing, cleansing, and coating ingredients. It's non-sticky and keeps your fingertips lustrous and beautiful. Whether you're at home or on the go, this one product is all you need for nail care anytime, anywhere.
Ingredients
How to use
Point the brush downwards and press the button on the container to dispense the serum. Apply an appropriate amount to your nails, the base of your nails, and between your nails and skin. Use it whenever and wherever you need it. *When first using, point the pen tip downwards and press the button several dozen times. *Can also be used on gel nails, nail color, artificial nails, etc.
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 has a natural, gentle scent that is not cloying. It's not sticky and there's no need to worry about it dripping.
I use two bottles, one for home and one for work. When I do housework, the dryness around my nails is always noticeable, and hand cream just doesn't cut it. This nail serum is easy to apply, not sticky, and has a pleasant scent, so it's very useful as I'm raising a child. It lasts for a while even after washing my hands, so I reapply it whenever I notice it again. The photo shows the before and after.
It's not sticky, so I can apply it quickly even while I'm at work.
The pen type is easy to use, but the serum doesn't blend in easily.