Espoir WOX® Oxygenated Water Kawasaki City Japan

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Quantity: 6 Bottles
Sale price$16.10 Regular price$31.10


WOX® -- "Drinkable Oxygen." This is the only product in the world that can provide the oxygen we need for life directly in drinkable form.
In 2021, we were granted substance patents in the U.S. and China after six years and a challenging filing process, and in Japan in 2022. As a result, oxygen hydrate was recognized as a new substance. Cumulative sales have exceeded 3.5 million bottles, and we satisfy a wide range of needs, such as athletes and people interested in health and beauty.

Oxygen, the source of energy essential for physical activity, can now be replenished by drinking water. This is the only product of its kind in the world. The oxygen is stable even when the bottle is opened, shaken, heated, or frozen. It supports athletes and your active daily life.


Oxygen Hydrate contains a hydrate form of oxygen. It is the first product in the world whose oxygen level does not change when shaken, heated, or frozen (withstands from -30°C to 100°C). Even if the bottle is opened, the oxygen will not be lost for more than 92 months. It has a shelf life of 2 years and an expiration date of 7 years if kept stored.
Ingredients: water, oxygen. Volume: 500ml. Total dissolved oxygen: 50ppm (mg/L) or more
In addition to the substance patent, a WOX manufacturing patent has been obtained.

Our Story

"WOX," developed and launched in 2011 based on the idea of a "topical vaccine,"a technology used to accurately supply cells with specific ingredients, and a "gas-liquid mixing solution," a technology for stabilizing gas and liquid, is a new type of product that can supply oxygen to the body by simply drinking it like water. The only ingredients are water and oxygen. WOX is manufactured using a patented technology that uses water molecules to hold oxygen molecules. WOX®, with its excellent solubility and permeability, is the core product in our WOX TREE Project.

Miscellaneous 1: Unlike conventional nanobubble oxygenated water, WOX® can be drunk as-is to replenish the body with oxygen.
Miscellaneous 2: The oxygen in the product is stable even if the bottle is opened and exposed to vibration, heat, or ice, and the oxygen concentration remains unchanged for 86 months.
Miscellaneous 3: It is ultra-soft water with zero minerals. It is mild and does not upset the stomach, making it suitable for people who do not like to drink water.
Miscellaneous 4: The only ingredients are water and oxygen. It contains zero calories.

Many athletes and celebrities have taken advantage of this product, and it has been highly acclaimed.
Total sales since its launch exceeded 3 million bottles in December 2020, and we are manufacturing at a rate of over 500,000 bottles per year.


Contents are filled to the brim, so there is a possibility of spillage when the cap is opened.

About Mediscience-Espoir

Founded in 2004 by Takaaki Matsumoto in Kawasaki city, Japan, Mediscience-Espoir has been working on solving the problem of an oxygen-depleted populace for almost 20 years.

Our bodies need oxygen in order to function properly, recover from exertion and to heal but the lungs are the only instrument our body has to pull oxygen from our environment. Unfortunately, this instrument is not very efficient, especially when faced with challenges like inflammation (pneumonia), illness, or environmental factors.

Many scientists around the world have been working to solve this problem for decades and many have failed to find a stable and scalable solution that would enable oxygen to be delivered to the body via the bloodstream. But Matsumoto never gave up believing it could be done.

Matsumoto started his career as a medical doctor and then became involved in the research and development for tests and treatments for infectious diseases. He focused on developing new, innovative vaccine technologies, and eventually created the vaccine delivery system that allowed a vaccine to be painted onto the skin. In the development of this technology, he and his team realized the potential for other applications including cosmetic and medical.

He founded Mediscience-Espoir with the intention of developing oxygen technologies that had the potential to improve the quality of life for everyone in the world. In 2004, the company commercially released its first cosmetic cream that delivered oxygen directly to the skin and allowed the body to absorb it through the dermis. We also began developing the Nano-silver technology at this time.

In 2011, Mediscience-Espoir developed WOX water, the gas-liquid fusion of O2 and H2O for the purposes of oxygen supplementation, vaccine delivery and cosmetic treatments. Since then, the company has been testing and strengthening our various technologies, releasing new generations as they are perfected.

In 2015, we received manufacturing patents from Japan and the U.S. and measurement patents from Japan, the U.S. and China. In 2021, we received substance patents from the U.S. and China and began the commercialized production and sale of HT Silver 10. In 2022, we expect to release the 6th generation of our vaccine technology.

Please contact us if you’re interested in working with us and our technologies to develop or improve your product.

[For Sales Representatives, Retailers, and Distributors]

We welcome inquiries about our products from retailers, distributors, and wholesalers around the world. While j-Grab Mall is Japan's No. 1 B2C cross-border e-commerce platform, many Japanese-made products are also available for B2B transactions.

If you provide us with details such as the quantity you are interested in purchasing and conditions, we can provide you with a quotation.

To all Sales Representatives, Retailers, and Distributors, please feel free to request sample products from us and experience the quality of Japanese-made products firsthand! At j-Grab Mall, our dedicated staff can handle B2B negotiation and communication on your behalf.

For more information, please send an inquiry via eBay Message Board. We appreciate your interest and look forward to working with you!


Kawasaki City Store

KAWASAKI CITY STORE will send the curated collection of products from City of Kawasaki in Japan for everyone around the world We promise to support customers kindly, courteously and promptly based on O-mo-te-n-shi mind!

KAWASAKI CITY is located just west of Tokyo in Japan. As a part of Tokyo metropolitan area, the city has contributed Japanese industrialization and modernization.

Furthermore, KAWASAKI CIY is one of The 53 Stations of the Tokaido (Hiroshige Utagawa, 1832-1833) and is along the Tokaido road, the highway connecting Edo to Kyoto. Accordingly, we respect not only Japanese modern cultures but also Japanese traditional cultures. Through this store, overseas customers can purchase a variety of products made by Japanese specialists from glass artisans to sheet metal workers.

KAWASAKI CITY STORE is a one-year limited store from December 2022 and is operated by a joint venture between j-Grab Inc. and JTB Corporation, commissioned by City of Kawasaki. We also plan a pop-up shop for show rooming in Cambodia, Singapore and USA. Customers can check our products in the real world at the shop and place an order through this online store.

Customers can check our products in the real world at the shop and place an order through this online store.

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