Immun'Age × Shiga Kogen Prince Hotel Exclusive "Wellbeing × Immun'Age Sport" Accommodation Package Limited to 3 Couples per Day | Reservations Open December 20

2025.12.20 10:00

Osato International Inc.

Osato International Inc. (Head Office: Gifu, Japan; President: Yuki Hayashi) is pleased to announce that the opening of reservations for the exclusive collaborative accommodation plan “Well-being × Immun’Age Sport”, developed in partnership with Shiga Kogen Prince Hotel (Nagano, Japan; General Manager: Seichi Kobayashi), available from December 20.

Immun'Age Sportとアクティブ&プレミアムなスノーリゾート体験を

Active & Premium Snow Resort Experience with Immun'Age Sport

As the partnership enters its 17th year this winter, a new initiative is being introduced: an exclusive stay-style well-being program limited to three couples per day. This carefully curated plan allows guests to experience a lifestyle incorporating Immun’Age Sport—a product selected by professional athletes who require sustained high performance—while fully enjoying winter sports in Shiga Kogen.

■ Beyond “Active & Premium”

Created with the philosophy of “the best ski/snowboard run of your life,” this plan offers a refined wellness experience designed to support optimal physical conditioning through Immun’Age Sport. Available exclusively at Shiga Kogen Prince Hotel in Japan, this special program caters both to guests eager to immerse themselves in winter sports immediately after long-distance travel and to those seeking a more relaxed and restorative stay. This season-only offering invites guests to enjoy a premium winter retreat that achieves an ideal balance between activity and recovery.

Reservations:

Official website of Shiga Kogen Prince Hotel

https://www.princehotels.co.jp/shiga/plan/ImmunAge/2025-26/

■ “Well-being × Immun’Age Sport” Package Overview

Stay Period:

Check-in from December 20, 2025 to March 30, 2026

Accommodation:

Shiga Kogen Prince Hotel East Wing, Comfort Twin Room (Slope View)

Package Includes:

　　　　　Dinner and breakfast

　　　　　One drink (aperitif or digestif) with light snacks

　　　　 Late check-out until 1:00 PM*

　　　　　Shiga Kogen All-Mountain Lift Pass (2 days)

　　　　　One box of Immun’Age Sport (10 sachets, 4.5 g each)

* Late check-out is subject to availability.

Immun'Age Sport × 志賀高原プリンスホテル

■ Immun’Age Sport

Immun’Age is a granulated fermented food produced through a proprietary long-term fermentation process using papaya from Hawaii. Over more than 30 years, extensive research has been conducted in collaboration with universities and research institutions in Japan, Europe, and the United States, resulting in over 50 peer-reviewed international scientific publications.

Immun’Age is manufactured at a domestic facility certified under four international quality standards, and has been distributed in Japan, Europe, and the United States for more than 20 years.

For more information:

https://www.fpp-japan.com

In addition, Immun’Age has obtained the internationally recognized anti-doping certification Informed-Sport, with every production lot tested prior to market release. Since 2005, Immun’Age has served as the official partner of the prestigious British racing team Aston Martin Racing, supporting performance and conditioning management for elite athletes worldwide.

Immun’Age Sport is a newly introduced product line developed not only for professional athletes, but also for individuals who lead active lifestyles. Each sachet contains 4.5 g—1.5 times the standard formulation—making it well suited for daily conditioning support and performance maintenance during sports.

■ Scientific Support for Snow Resort Professionals

During the 2025–2026 season, Immun’Age Sport will support the ski patrol, grooming, and snowmaking teams at Shiga Kogen Yakebitaiyama Ski Resort, alongside the implementation of scientific health evaluations. These professionals work under severe natural conditions at altitudes of 1,500 to 2,000 meters, playing a critical role in maintaining both slope safety and quality. Supporting their health directly contributes to improved safety and experience for resort guests. This initiative represents the first industry-led effort to scientifically assess and support the health of snow resort professionals.

志賀高原プリンスホテル東館コンフォートツイン

Shiga Kogen Prince Hotel East Wing Comfort Twin

■ Shiga Kogen Prince Hotel & Shiga Kogen Yakebitaiyama Ski Resort

Located at the altitude of over 1,500 meters, Shiga Kogen Prince Hotel and Shiga Kogen Yakebitaiyama Ski Resort together form one of Japan’s premier snow resorts, renowned for its exceptional snow quality known as “Yakepow” (Platinum Powder).

The resort gained iconic status as a filming location for a classic movie that symbolized Japan’s ski boom of the 1980s, and has since been selected as the venue for numerous international competitions.

At the heart of the resort lies the signature “A4 Olympic Course,” where immaculately groomed runs are maintained by highly skilled operators—known as Meisters—certified under a proprietary qualification system. Their uncompromising craftsmanship consistently delivers world-class piste conditions.

In addition, the resort offers a diverse range of terrain, including five designated ungroomed powder zones, allowing guests to enjoy both perfectly groomed slopes and natural powder snow. From children experiencing skiing for the first time to advanced athletes seeking peak performance, Yakebitaiyama provides an environment where skiers and snowboarders of all levels can discover their own perfect run.

コンディションの維持にImmun'Age Sport