Onsen Secret Professional Nail Buffer Block | 4-Way Buffing for Natural Shine & Healthy Natural Nails - Includes 2 Extra Shine Pads, Salon-Quality, Post-Gel & Acrylic Recovery | 1 Pack
Condition: New
$13.95
Save $1.04
was $14.99
Buy Now, Pay Later
As low as
$3
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Friday, Nov 6
At a glance
- Condition
- New
- Size
- 1 Count (Pack of 1)
- Dimensions
- 3.5 x 0.75 x 3.5 in; 0.71 oz
- Item Form
- Buffer Block
- Specialty
- Clarifying
Features 5
- PATENTED GRIT TECHNOLOGY: Developed in 2004, our proprietary nail buffers gently buff imperfections without thinning or damaging nails, preventing cracks, splitting, and Defends against environmental stressors
- MOISTURE LOCK TECHNOLOGY: Your nails worst enemy is dryness. Our 4 sided nail buffer block locks in moisture and reveals a brilliant, chemical-free shine that lasts up to 10 days. Perfect for reversing dryness caused by acrylics, gels, and polish
- 4-IN-1 NAIL TRANSFORMATION: Smooth ridges, remove surface stains, buff for healthy circulation, and polish to a glossy, natural shine. Onsen nail buffer is ideal for both routine maintenance and rebooting nails after gel or acrylics
- SUSTAINABLE, COST-EFFECTIVE & INCLUDES EXTRA PADS: The durable buffing block is designed for years of use. Simply replace them as needed for a cost-effective, sustainable solution - no need to repurchase the entire block. Each buffer includes 2 extra white shine pads
- PERFECT FOR WEEKLY USE: Use Onsen 4 sided buffer once a week on fingernails and every two weeks on toenails. We recommend a 60-day Nail Reboot at least once a year to restore strength and vitality
Description
Your nail routine shouldn’t be a burden. With Onsen’s Japanese Nail Care Products, you can create a beauty ritual you can feel good about and couldn’t possibly live without. Where harsh chemicals and polishes fail your nails, nature provides. What’s the Onsen secret? Activate the inborn power of your nails to heal. It only takes a few minutes to use and the results are immediate! Works great to keep healthy nails strong.
Specs 13
| Product Dimensions | 3.5 x 0.75 x 3.5 inches; 0.71 ounces |
|---|---|
| Item model number | NB |
| Manufacturer | Onsen Secret |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Size | 1 Count (Pack of 1) |
| Brand Name | ONSEN |
| UPC | 895705001007 |
| Global Trade Identification Number | 07 |
| Model Number | NB |
| Manufacturer Part Number | NB |
| Item Form | Buffer Block |
| Specialty | Clarifying |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Nov 6
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Top Amazon Reviews
love it
Size: 1 Count
great purchase! works great on my nails love the polished look & shine it gives them ...it looks like i just got a manicure done!
Reviewed in the United States on October 2, 2026 by Sunday Shopper
Great product!
Size: 1 Count
This is the best nail buffer. Easy to use and results are shiny, healthy looking nails.
Reviewed in the United States on August 27, 2026 by Pam
It’s amazing!!
Size: 1 Count
It was really hard to get a picture, but I did ONE nail and couldn’t wait to show the difference! I finished the rest, and did my toes and I can NOT stop looking at them in different lights! This definitely works! I was gentle with it, so it did not get torn up as others have said. Might help to keep the end of your nail from slicing along the product. In other words, don’t buff the ends of your nails going side to side. I believe the proper way to file is going downward. It’s not always easy to do, but if you make the effort it did not make any marks that way. (This is important mostly for the shining side. The other two sides were a bit tougher) I wasn’t sure how this product would perform or hold up, but it is now my favorite thing in the world! 😂 I like a natural look, I had French style LCN’s for about 20 years and they destroyed my nails. I FINALLY can grow my nails and I wanted something to make them look nicer, but I didn’t want polish or any product as I didn’t want to ruin my natural nail. THIS WAS THE ANSWER! Thank you to all of those who provided good reviews and pics because this is an excellent product! It’s been over a week since I did it, and my nails definitely still have a lot of shine to them. (I work in the garden, and I’ve used nail polish remover on my toes which got on my nails and they’re still shining!) I would imagine every two weeks you’d want to redo them, but I can’t say for sure yet.I think the shine will last a lot longer! Thank you for creating the PERFECT product! I will be purchasing the replacement pieces when I’m ready for them! So everyone knows, I am not being offered anything for this review… I know that happens often, but not in this case. I wrote this review to share a great product, which is difficult to come across these days!
...
show more
Reviewed in the United States on July 8, 2023 by Christina
Really like this
Size: 1 Count
I honestly like this buffer. Made my toenails look like they were polished. Same with my nails but had to really use strength while buffing. Only four stars because they don’t last as long as they used to.
Reviewed in the United States on December 4, 2025 by Barefoot Lass
Works Great!
Size: 1 Count
This product is awesome!! It works, and gives your nails an unbelievable hard-coat-super-shine!! Not sure the science of how this works... but it is witchcraft!!! I love it!! Works fantastic on natural nails, and acrylic nails. The shine NEVER fades or leaves, and doesn't really scratch. You don't have to re-do the filing process ever! I get my acrylic nails done professionally by my friend. I bring this bad jackson, instead of a doing a gel top coat. This is WAY better than a gel top coat. I gave an overall 5-stars, but I do have a couple of gripes... 1. It seems pretty flimsy... so I am really unsure how long the file will last. 2. It is $$PRICEY$$ for this tiny, flimsy thing!!! I mean way to expensive!!! If the file lasts and lasts... then it would be worth the price. I will just have to see how long it lasts!! UPDATE- JUNE 30 2020: I will stick with my original statement that it works, and makes your nails WAY shiny!!!! However, as you can see from my pics the shining side is completely flaking and falling apart. Keep in mind, it's flaking after literally 3 uses. Wow!!! I love how good it works, but would NOT purchase again!!! It's literally worthless now, because the shining side of the block is completely peeled off. It's way to expensive as well. No, just no!! UPDATE- JULY 2 2020: I contacted the company personally from their website (not through Amazon, since my return window had closed), and told them about how the buffing block was falling apart. I also sent in the pictures. They immediately offered me two options. 1. Get a full refund (even though the return window on Amazon had closed), and keep the original buffing block I paid for OR 2. Have a new buffing block sent to me free of charge, and still keep the original buffing block I paid for. I chose another buffing block. The customer service was awesome!! I bought this on 5/4/20 and could return it back through Amazon up until 6/3/20. Even being past the return date, they STILL helped me!! I appreciate that, and definitely will change my mind and order from them again.
...
show more
Reviewed in the United States on May 12, 2020 by S
Great nail
Size: 1 Count
I’ve purchased several of these over the years and they are the best I’ve ever used. I love this product!
Reviewed in the United States on September 10, 2026 by Anne J
Decent block, nothing amazing; don’t use too often or nails will be thinned and damaged
Size: 1 Count
First, note that any buffing block like this, no matter the brand, is damaging to the nails. You’re essentially filing off the nail’s top layer of keratin with a fine sandpaper, then buffing it to a shine. So it certainly shouldn’t be done often, especially if you have naturally thin or brittle nails to begin with. So use sparingly and/or only on very thick and healthy natural nails! That being said, I bought this because after keeping my nails painted with regular polish practically 24/7 for over a year, they started peeling in sheets from the tips, no matter what products, brands, and techniques I tried. I knew I wanted to take a step back from polish and allow the peeling tips to grow out, but still find a way to keep my natural nails looking shiny and smooth without polish. So, I decided to try this buffer once to give my natural nails a “fresh start.” It’s expensive for a single buffing block and I didn’t find that it really performed any better than a cheaper block from a beauty supply store. It gave me a nice smooth feeling and a shine, but nothing super glossy or glass-like. I did go easier with the sanding steps to protect my already-thin nails. The more you sand off, the more shine you’ll likely get (but the more damaging). The initial shine only lasted about 4 days for me before I felt like it was starting to dull and needed to be polished again with the smooth side of the block. Bit disappointing considering they advertise 10 days of shine. I did get 10 days out of using it for a pedicure, though, since socks act like protection. My photos show a before and after on both hands. I do like that they sell replacement pads, but so far the block has held up fine for me after doing a manicure and pedicure. Obviously don’t dig the tips of your nails into the buffer and it won’t become scratched up like some reviews show. You should just be gently gliding it over the surface of the nail, not digging the tips of your nails into it. Since I only plan to use this infrequently, I justified paying $13. But if you’re someone whose thick nails can stand up to more frequent buffing without taking on too much damage, I’d say go with a cheaper block from a beauty supply store and get the same result. Also, don’t fall for the “Japanese” marketing - as far as I can tell, Onsen is an American brand owned by an American man who visited Japan once and now names his products things like “onsen” and “pagoda" for the foreign appeal.
...
show more
Reviewed in the United States on December 6, 2023 by OJ
Superb
Size: 1 Count
Wow, I didn't even have to add top coat to make my nails shine. They felt stronger and looked glossy.
Reviewed in the United States on July 7, 2026 by Marcia Sharp