Where can I buy this herbal soup porridge?

It is available for purchase on all international flights operated by ZIPAIR.

What is the sales period and quantity?

Sales will begin on April 1, 2026, with a limited quantity of 2000 servings.

Why is it effective for jet lag?

It contains ingredients that help regulate the body's circadian rhythm, based on chrononutrition, aiding in refreshment in irregular environments.

Saishunkan Pharmaceutical Partners with ZIPAIR Tokyo to Launch 'Yakuzen Soup Porridge' for International In-Flight Meals

Published Apr 2, 2026 9:00 PM ・ Updated Jun 13, 2026 11:53 PM ・ 5 min read ・ Source: PR TIMES

Saishunkan Pharmaceutical and ZIPAIR Tokyo have launched a collaborative project to offer 'Yakuzen Soup Porridge' on international flights starting April 1, 2026. This initiative, part of the 'Positivism' brand, utilizes Kampo insights and chrononutrition to help alleviate jet lag and support biological rhythms during long-haul travel.

Saishunkan Pharmaceutical Co., Ltd. (Headquarters: Mashiki-machi, Kumamoto; President: Masaaki Nishikawa) has initiated a collaborative project with ZIPAIR Tokyo Inc. (a 100% subsidiary of JAL) as part of its Kampo-based lifestyle brand 'Positivism.' On April 1, 2026, the company began test-selling 'Yakuzen Soup Porridge' as an in-flight meal designed to mitigate jet lag during long flights.

This project is positioned as the first step in a 'Culture Creation Business' proposing new habits for 'self-care with awareness of biological rhythms.'

### Project Background: New Travel Habits Focused on Biological Rhythms Long-distance travel is a harsh environment where daily life rhythms are temporarily disrupted. Based on insights from chrononutrition, this project provides meals that focus on biological rhythms, supporting passengers in maintaining their rhythm and starting their journey comfortably.

### Uniqueness and Value: Self-Care Recognized by Cabin Professionals This collaboration combines Saishunkan’s Kampo expertise with chrononutrition to offer a new solution: 'meals that align with biological rhythms.' In a tasting survey with cabin crew, the product received high praise, with many noting that 'warming the body helped refresh during irregular flight schedules.'

### Voices from ZIPAIR Cabin Crew (Excerpts): - 'I felt more refreshed than usual after the flight. It provided a moment of calm for both mind and body.' (30s, Female) - 'The ginger flavor is a perfect accent, and the warm soup spread through my body. It's easy to eat even when tired or lacking appetite.' (20s, Female) - 'The cabin can feel cold, so warm porridge is very reassuring. I believe passenger demand will be high.' (30s, Female)

### Overview: - **Product:** 'Yakuzen Soup Porridge,' developed to address the social issue of 'social jet lag' by focusing on biological rhythm care. - **Routes:** Available on all ZIPAIR routes. - **Test Sale Details:** Limited to 2,000 servings on ZIPAIR international flights starting April 1, 2026.

### Reference: 'Yakuzen Soup Porridge' 4-Flavor Assortment Perfect for groggy mornings after a weekend. Why not soothe your mind and body with a warm bowl? This single serving supports a healthy start to your week. URL: https://www.saishunkan.co.jp/lashiku/yakuzengayu/index.html

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Source: PR TIMES
Category: New Product|Partnership

Saishunkan Pharmaceutical Partners with ZIPAIR Tokyo to Launch 'Yakuzen Soup Porridge' for International In-Flight Meals

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