Seika Zen and Soka Health Center Unite for an Innovative Sauna Hair Care Event

A Unique Collaboration: Seika Zen x Soka Health Center

In an exciting development for health and wellness enthusiasts, Oji Seiyaku Co., Ltd., based in Shibuya, Tokyo, is set to launch a collaboration event featuring their innovative hair care brand, Seika Zen. The event will take place at the renowned Yunoizumi Soka Health Center in Soka City, Saitama Prefecture, from October 1 to 31, 2025. Known as the "Holy Land of Sauna," this facility has become a beloved destination for sauna lovers across the nation, making it the perfect backdrop for this unprecedented event.

This collaboration aims to merge the philosophy of Seika Zen—"to fulfill rather than just add"—with Soka Health Center's commitment to providing a supreme experience of balance and wellness. Participants will enjoy a groundbreaking sauna experience that works to harmonize body and hair health simultaneously.

Event Highlights: Experience the True Value of Seika Zen

Seika Zen offers a revolutionary take on hair care that incorporates traditional Japanese herbal wisdom. Their shampoos are formulated with time-honored ingredients, ensuring gentle cleansing for both hair and scalp while providing a soothing daily care routine.

Every attendee will receive complimentary samples of shampoo and conditioner, allowing them to continue experiencing the refreshing benefits of Seika Zen at home. This gesture encourages participants to extend the "balance" they experience during the event into their everyday lives.

In addition, attendees can receive exclusive collaboration stickers by following Seika Zen's official Instagram account (@zenshampoo.jp). This limited-edition merchandise serves as a commemorative item, reminding everyone of this unique event long after it has ended.

The Distinction and Benefits of Seika Zen: A Future for Hair and Scalp

Seika Zen is not just another line of hair care products. It embodies the deep knowledge and research expertise of Oji Seiyaku, seamlessly blending traditional herbal insights with contemporary technology. This ensures the development of a shampoo specifically designed to care for the scalp.

Innovative Ingredient Synergy

The shampoo is made with meticulously selected plant-derived Japanese herbal components and augmented with modern research findings. This combination allows for a gentle yet effective design that cleanses away excess oils and impurities, while preserving necessary hydration for both hair and scalp. The result is a daily shampoo habit that fosters a healthy environment for vibrant hair and scalp.

Lightweight and Voluminous Finish

Users can expect a light and voluminous finish, with hair feeling airy yet well-structured after drying. The silky texture invites touch, leaving a satisfying sensation with every use.

Refreshment Through Scent

The scent encapsulates the refreshing feelings one experiences after a sauna or bath, ensuring that shampoo time transforms into a delightful relaxation experience.

Product Overview

- Seika Zen Shampoo

- Volume: 400mL
- Price: 1,958 yen (tax included, suggested retail price)
- Features: A unique formula combining herbal ingredients and cutting-edge technology, designed to leave hair looking voluminous and light.
- Fragrance: Innovative scent with fresh green leaves and herbal notes, refreshing the scalp and delivering a cooling sensation.

- Seika Zen Conditioner

- Volume: 400mL
- Price: 1,958 yen (tax included, suggested retail price)
- Features: Provides moisture to hair, making it easier to manage and leaving it shiny and smooth.
- Fragrance: Designed to match the shampoo, creating a consistent aura for the care experience.

- Sample Pack

- Volume: Each 10mL (Shampoo/Conditioner)
- Price: Non-sale item (distributed at the event)

For the latest updates and detailed information, visit Seika Zen's official Instagram: @zenshampoo.jp.

About Yunoizumi Soka Health Center

Located in Soka City, Saitama Prefecture, Yunoizumi Soka Health Center is a community-oriented bathing facility often referred to as the "Holy Land of Sauna." Equipped with saunas and relaxation areas, it is beloved by local residents and sauna enthusiasts from across the country.
- Address: 2-23-23 Kitaya, Soka City, Saitama, 340-0046
- Hours: 10:00 AM - 8:00 AM the following day (Bathing hours: 10:00 AM - 1:30 AM, 5:00 AM - 7:30 AM)
- Male-Only: Sauna and cold bath limited hours from 1:30 AM to 7:30 AM
- Website: Yunoizumi
- Social Media: Instagram / X: @yunoizumi_souka

About Oji Seiyaku Co., Ltd.

With a philosophy centered on the idea that a healthy life is created through high-quality products, Oji Seiyaku has dedicated over 20 years to developing household cleaning products, sanitary items, home care, and personal care solutions. The company continues to innovate remarkable products that add value to consumers’ lives, contributing to a brighter and healthier society through steadfast principles and a sincere approach.
- Website: Oji Seiyaku