Why we made this
There's a soap for when you already have the problem. We wanted the one you start before that.
Skincare figured this out decades ago: find the mechanism, treat it early, make it routine. Body odor never got that treatment — the whole category waits until someone else notices. YUZEN is the version that doesn't.
-
The compound nobody treats early
Research going back to Shiseido's 2001 study found 2-nonenal shows up in body odor from around age 40. It's oil-based, so ordinary soap doesn't lift it. Everything on the market addresses it after it's a problem.
-
The ingredient that already existed
Japanese persimmon tannins have been used for this for centuries — just never framed as prevention. We didn't invent the mechanism. We changed when you use it.
-
One step, not a routine overhaul
Prevention only works if you actually keep doing it. So YUZEN is a bar of soap. You swap it in, and that's the whole commitment.
Real User Results Within 30 days
Verified buyer
Helen Park
Verified buyer
Helen Park
I started this in my early 40s before anything was actually wrong, which felt strange at first. Now the persimmon scent is just part of how I smell after a shower — clean, not perfumed.
Verified buyer
Marcus Ellison
Verified buyer
Marcus Ellison
I'm in my 40s and figured soap was soap. What sold me was the science behind it — persimmon tannins targeting the compound that causes age-related odor, before it starts. It's just part of my shower now, next to everything else I already do.
Verified buyer
Naomi Whitfield
Verified buyer
Naomi Whitfield
I’m 62, and I’d started becoming self-conscious about that “old person smell” I remembered from visiting my aunt years ago. After just a few days of using this persimmon soap, my granddaughter actually told me I smelled really fresh. That was all the reassurance I needed.
Verified buyer
Helen Park
Verified buyer
Helen Park
I started this in my early 40s before anything was actually wrong, which felt strange at first. Now the persimmon scent is just part of how I smell after a shower — clean, not perfumed.
Verified buyer
Marcus Ellison
Verified buyer
Marcus Ellison
I'm in my 40s and figured soap was soap. What sold me was the science behind it — persimmon tannins targeting the compound that causes age-related odor, before it starts. It's just part of my shower now, next to everything else I already do.
Verified buyer
Naomi Whitfield
Verified buyer
Naomi Whitfield
I’m 62, and I’d started becoming self-conscious about that “old person smell” I remembered from visiting my aunt years ago. After just a few days of using this persimmon soap, my granddaughter actually told me I smelled really fresh. That was all the reassurance I needed.
The honest numbers behind the ritual.
No miracle claims. Just the science we can stand behind, and one simple daily habit that helps you stay ahead of it.
Loved by early customers
4.5 ★
Average from 886 verified reviews
When skin starts to change
40+
The age group where researchers first detected 2-nonenal
Your daily ritual
30s
Lather your neck, chest, and back. Rinse. That's it.
Try it risk-free
60
Day risk-free trial in plain words
Yuzen Persimmon Soap, plus the rest of the line.
Start with the persimmon bar, then keep the same quiet ritual across wash and wear.
Yuzen Persimmon Soap
The Japanese persimmon bar for neck, chest, and back. $19.99. One step in the shower.
How Yuzen Compares
Yuzen
The Clean Choice
Cheap Persimmon Soap
Falls ShortFrequently Asked Questions
The Soap
How to Use
Shipping & Returns
What make it differnt from regular soap?
Most conventional soaps only wash away surface sweat and dirt but cannot properly address nonenal, the oil-based compound associated with aging odor. Our formula uses persimmon extract rich in natural tannins that help neutralize these odor molecules directly at the source instead of simply masking them.
What is your return policy?
We stand behind our product with a 60-day money-back guarantee. If you are not satisfied or do not notice an improvement, you can contact us within 60 days to receive a full refund.
Still curious? Our team replies within a day, every day.
+ Add section
Start Before You Need To
Body chemistry changes in your 40s. YUZEN is the persimmon soap that handles it — the step your routine has been missing, right next to your retinol and SPF.
Start the routineStart the Routine
Free shipping · 60-day guarantee
+ Add section
Get the science behind age-related odor, before you need to care about
Email addressSign up
Yuzen
Prevention, not correction.
Shop
- Home
- Japanese Persimmon Soap for…
- Yuzen Green Tea & Persimmon…
- Yuzen Travel Bar (50g)
- Yuzen Persimmon Body Lotion
- Yuzen Complete Freshness Kit
- Article
- Shop All
Free shipping on all orders · 100-day returns · Auto-refill anytimeInstagramTikTokYouTube© 2026 Yuzen. All rights reserved.
Does it have a strong fragrance?
No, it has a very mild, natural scent from the persimmon and green tea. It won't compete with your perfume or cologne, and many customers describe it as "clean" or "fresh" without being overpowering.
How will I know it's actually working if I don't smell anything yet?
Yuzen works preventatively, so there's no dramatic before-and-after to notice — the persimmon tannins bind to odor compounds like nonenal from the first wash, before they build up. Most people fold it into their routine within a few uses and just keep going.
How do I use it?
Once a day in the shower, work the bar into a lather with warm water. Massage it over your neck, chest, and back, then rinse. It takes about 30 seconds.
When will I notice a difference?
Yuzen is a prevention habit, not an instant deodorant. The goal is to use it daily so you never have anything to notice.
Can I use it on my face?
Yes. Our gentle formula is free from harsh chemicals and synthetic fragrances, making it suitable for sensitive and mature skin. The combination of coconut oil and olive oil helps moisturize, support the skin barrier, and soothe dryness or irritation.
What is your return policy?
We have a 60-Day Money-Back Guarantee. If our persimmon soap doesn’t help with your aging odor concerns, simply contact us within 60 days of your confirmed delivery date and our support team will help you with your refund.
How fast will it arrive?
Orders process within 24-48 hours and arrive within 7–10 business days depending on your location. You'll get tracking the moment it leaves the warehouse.