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
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Extended holiday returns
Returnable until Jan 31, 2026 Learn more
Returnable until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026
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.
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Availability:
In Stock.
Arrives
Monday, Dec 1
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Size: 1 Buffer with Replacement Pads
Features
- 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
Item Form: Wipe
Specialty: Alcohol-Free, Formaldehyde Free, Non Toxic, Paraben Free, Softening
Number of Items: 1
Unit Count: 1 Count
Manufacturer: Onsen Secret
Is Discontinued By Manufacturer : No
Product Dimensions : 3.5 x 0.75 x 3.5 inches; 0.81 ounces
Item model number : NB
UPC :
Manufacturer : Onsen Secret
Best Sellers Rank: #28,216 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #127 in Nail Files & Buffers
#127 in Nail Files & Buffers:
Customer Reviews: 4.5 4.5 out of 5 stars 6,700 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Dec 1
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.
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Similar Products
Top Amazon Reviews
Size: 1 Buffer with 6 Replacement Pads
I am BLOWN away by this buffer. Don’t judge my nail shape/cuticles I was too excited to try this when it got delivered. In the first picture, I had used the yellow and blue sides and it was already impressive how smooth my nails got. Then I started to shine starting with my thumb and I Immediately stopped because I was floored at the shine and took a before photo - 2nd photo being the after. I BARELY rubbed the white side on my nails and this is the shine. Freaking polished. It came with two replacement white sides so I’m pretty sure this is going to last awhile. I also bought the buffer that came with more replacements for just a bit more so I’m set. I’m the type to scour amazon for hours (yes, even for nail buffer blocks) and dude I could not be happier this is the one I chose. It’s more than worth it. I’m like begging ya’ll to choose this over the $3 ones and remember to only buff your nails ONCE a week to maintain the strength of your nails otherwise you’d be stripping them. I’m sure just once a week with this will be enough. This thing is magic. I also got the cuticle conditioner from this brand and applied it last night before I tried this and noticeably, my cuticles ARE softer so I’m excited to do a full nail routine. You only need a little (it is a small tube and that worried me). BTW I feel like this is a good opportunity to share that ya’ll should also get sally hansens instant cuticle remover, a cuticle pusher, and cuticle cutters. These things in my nail routine (and now this block) have TRANSFORMED my nails although I haven’t quite figured out how to make them actually stronger as genetically it seems Im prone to weak nails that chip and break.. maybe this block will help. I also take nature’s bounty hair, skin and nail pills (my nails wouldn’t grow otherwise).
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Reviewed in the United States on April 24, 2025 by Susan Susan
Size: 1 Buffer with Replacement Pads
Phenomenal product. Your nails will be so shiny, so strong and it’s so quick. Looks like you’re wearing polish all the time!!
Reviewed in the United States on November 13, 2025 by rwildg
Size: 1 Buffer with Replacement Pads
Worked really well to buff down ridges in my nails and give a soft shine.
Reviewed in the United States on October 4, 2025 by B. Elaine
Size: 1 Buffer with Replacement Pads
This product does work and makes the nails shiny
Reviewed in the United States on June 18, 2025 by Amazon Customer
Size: 1 Buffer with Replacement Pads
The media could not be loaded. My nails look so healthy and beautiful. It looks like I'm wearing a shiny clear coat! And so easy in 3 steps, first use the Clarify side that evens out your nail texture, then the Boost side that smooths it out and then the Shine side that makes your nails look absolutely stunning!
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Reviewed in the United States on August 9, 2025 by Lauren Sarasua
Size: 1 Buffer with Replacement Pads
Nails seem smoother and shinier after buffing. Removes rough spots. Polish goes no smoother.
Reviewed in the United States on October 16, 2025 by CIA
Size: 1 Buffer with Replacement Pads
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.
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Reviewed in the United States on December 6, 2023 by OJ OJ