Limited-time collaboration "X-Plosion no Yu" to be held at Yunosen Soka Health Center from Feb. 17 Yunosen Soka Health Center" from February 17, 2012 Using "Karada Totonou ProBath" hot spring bath
エクスプロージョン合同会社
X-PLOSION, LLC (hereinafter referred to as "X-PLOSION") will conduct a collaboration project using its hot spring bath additive "Karada Totonou ProBath" at Yunosen Soka Health Center, a hot spring facility in Soka City, Saitama Prefecture, from February 17, 2026 (Tuesday) to March 2, 2026 (Monday). The project will run from February 17 (Tue) to March 2 (Mon), 2026, at Yunosen Soka Health Center, a hot-spring facility in Soka City, Saitama Prefecture.
This is an effort to deliver the product's concept of "creating a habit of physical and mental conditioning in daily life" as an experience at a real bathing facility. During the period, "Karada Totonou ProBath" will be used in the bathtubs at the facilities, and the content of the bath will change daily.

X-PLOSION × Soka Health Center" collaboration front entrance curtain
Don't stop at just relaxing when you take a bath.
Karada Totonou ProBath" is a warm bath additive developed by X-PLOSION, which has supported the conditioning of Japan's youth through protein and supplements, by taking a fresh look at the daily activity of bathing.
We want people to have time to condition themselves not only after exercise, but also after work, on holidays, and in other aspects of their lives. With this in mind, we have redefined bathing as "a time to consciously face yourself" rather than "a time to spend casually.
The baths at Probus change every time you come.
In this collaboration, based on the "Karada Totonou ProBath," we will offer a "ProBath bath" with a different theme and scent each day. The emphasis is not on a one-time experience, but rather on a different way to enjoy the baths no matter how many times you visit.
The daily changing baths are as follows. (*Subject to change)
2/17 (Tue) Lavender
2/18 (Wed) Forest
2/19 (Thu) Yuzu
2/20 (Fri) Rose
2/21 (Sat) Orange
2/22 (Sun) Lavender
2/23 (Holiday) Forest
2/24 (Tue) Eucalyptus
2/25 (Wed) Hinoki
2/26 (Thu) Rose
2/27 (Fri) Orange
2/28 (Sat) Yuzu
3/1 (Sun) Eucalyptus
3/2 (Mon) Lavender
A break that lasts after taking a hot bath
This policy is designed to create an experience that will leave you feeling refreshed after a hot bath, as if you were sweating after taking a bath. We hope that when you get out of the bath, you will leave feeling refreshed.
This expression is intended to describe the general experience of bathing and does not guarantee any specific effect or efficacy. There are individual differences in the sensation.
◇Private event for fans on the first day
On February 17 (Tuesday), the first day of the program, a private event will be held exclusively for X-PLOSION fans. Special guests invited will include former world boxing champions Shinji Takehara, Takanori Hatayama, and Katsuo Tokashiki, who will share their backgrounds and thoughts on the products and offer a special time to think about the importance of body maintenance.
Bath salt samples and original stickers will be distributed in limited quantities.

Original collaboration sticker
During the collaboration period, bath salt samples and original stickers will be distributed in limited quantities as an effort to bring back memories of the "Karada Totonou ProBath" experience.
The bath salts samples are intended to encourage people to try the "regulating bath time" at home, and the stickers are novelties that express the world view of this project. The number of samples distributed is limited and will end as soon as they are gone.
Details on distribution conditions and distribution methods will be announced on the bulletin board inside the museum.
<Outline of the project
Project name: Karada Totonou ProBath × Yunosen Soka Health Center
Period: Tuesday, February 17, 2026 - Monday, March 3, 2026
Location: Yunosen Soka Health Center (Soka City, Saitama Prefecture)
Content: Collaboration using "Karada Totonou ProBath
Collaboration jacks in the facility
・Daily ProBath baths will be offered.
○February 17 (Tuesday): Private event for fans
Special guests: Katsuo Tokashiki, Shinji Takehara, Takanori Hatayama

Various "Karada Totonou ProBath" packages
<Product Information
Product name: Karada Totonou ProBath
Type : Bath additive (bath cosmetic)
Content : 3kg
Price : 3,999 yen (including tax)
Type : 8 types (lavender, fragrance-free, rose, eucalyptus, forest, yuzu,
Hinoki, Orange)
Sales page: https://store.x-plosion.jp/view/category/ct012bath
About Yunosen Soka Health Center

Yunosen Soka Health Center
Yunosen Soka Health Center is a long-established bathing facility located in Soka City, Saitama Prefecture.
Equipped with a spacious bathhouse, high-temperature sauna, dining area, and rest area, it is popular with a wide range of people, from local residents to visitors from far away.
The facility is particularly popular with visitors who come for the sauna and hot baths, and it can be used in a variety of ways, from daily use to a full-day stay. The facility is known for its many fans due to its operational know-how cultivated over many years and its deep understanding of hot-spring culture.
This collaboration was realized because of the overlap between the concept of "conditioning the body and mind through bathing," which the facility has long cherished, and the conditioning philosophy that Karada Totonou ProBath aims for.
<Basic Facility Information
Facility Name : Yunosen Soka Health Center
Location: Soka City, Saitama Prefecture
Facility type: Hot-spring bath facility (with sauna, bathhouse, food and beverage facilities, and rest area)
Official website: https://yunoizumi.com/souka/
Please check the official website for details on hours of operation, fees, etc.
Company Profile】】 Company Name : Explosion LLC
Company name: Explosion LLC
Business Description : Planning and sales of sports supplements, protein, bath salts, etc.
Official website : https://x-plosion.jp
Online store : https://store.x-plosion.jp
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