Skip to content

Cart

Your cart is empty

A smiling woman holding a bottle of ONSENSUI 99 natural alkaline water in warm daylight.
alkaline water

The habit of “hot spring water 99” to create daily beauty

``Hot Spring Water 99'' is a natural alkaline ionized water that is chosen as ``drinkable skin care''.Just by changing the water you drink every day, you can feel lighter in body and mind.

ONSENSUI 99 – Natural alkaline water born from the pure nature of Tarumizu, Kagoshima.
alkaline-water

Back to Nature – Feel the purity of 99 hot spring waters in nature

Clear air, clear sound of water.The hot spring water 99 that you can enjoy in the midst of nature will moisturize your mind and body just like the source.

Bright new apartment interior for a Japanese soft water lifestyle, ideal for a fresh start with ONSENSUI99.
alkaline water

Choosing Water for Your New Life: A Guide to the Best Options for Solo Living and How to Pick Wisely [Preservation Edition]

Water is essential for starting a new life. This article explains how to choose the right water for living alone without making mistakes and how to easily incorporate healthy water habits into your...

A glass teapot with herbal tea made using soft water, representing a premium Japanese detox lifestyle with gentle hydration.
alkaline water

Can You Detox with Water? Effects and How to Choose the Right Water

Is water effective for detoxification? We'll explain how it works and how to choose the right water in an easy-to-understand way.

Onsensui99 alkaline water morning hydration lifestyle routine
alkaline water

Transform Your Beauty and Health with a Morning Water Habit | A Clear Explanation of Why You Should Drink Water in the Morning

Can just drinking water in the morning change your body? We'll explain the reasons why it's good for beauty and health in an easy-to-understand way.

Clear glass of water representing alkaline water concept and clean hydration
alkaline water

What is alkaline ionized water? An easy-to-understand explanation of the difference between it and natural alkaline water

We'll explain the difference between alkaline ionized water and natural alkaline water, starting with the conclusion. We'll also compare which one is more natural and safer in an easy-to-understand...

温泉水99の製造工場|高温殺菌と無菌充填による安全な製造工程
alkaline water

🧪 Annex Science Series Vol.3|Science of high temperature sterilization and safety|Delivering “drinkable hot springs” with peace of mind

Hot Spring Water 99 is a natural water with an alkaline pH of 9.9 and a hardness of 1.7.We perform high-temperature sterilization to increase safety while preserving its natural power.We will intro...

透明な温泉水99を注ぐ|超軟水のやさしい飲み口
alkaline water

🧪 Annex Science Series Vol.1|What is alkaline ionized water? Using science to solve the problem of “friendly water” with a pH of 9.9

"Hot Spring Water 99" is a natural alkaline ionized water with a pH of 9.9. We will explain the differences in alkalinity, hardness, and geology in an easy-to-understand manner from a scientific pe...

朝日が差す窓辺に置かれた温泉水99ボトルとグラス|Onsen Water 99 Wellness Series
alkaline water

Onsen Water 99 Wellness Series|Incorporate “drinking hot springs” into your beauty, health, and daily life

“Drinkable hot springs” that are closely related to beauty, health, and daily lifestyle. "Onsen Water 99 Wellness Series" proposes a beautiful and healthy daily life through hot spring water 99.

A man preparing a protein shake with water in a kitchen, illustrating mixing protein with water for daily use.
alkaline water

Should You Mix Protein with Water? How Choosing the Right Water Impacts Drinkability and Effectiveness

Are you wondering if you should mix your protein powder with water? We'll explain it clearly, including ease of drinking, differences based on water type, and the water situation in Thailand.