The science behind how your tap water becomes molecular hydrogen water

What Makes Enagic Different?

For over 5 decades, Enagic International has been the leader in manufacturing water ionization systems that transform regular tap water into pure, healthy, electrolytically-reduced and hydrogen-rich drinking water. This Japan-based company internationally distributes hundreds of thousands of Kangen Water machines to homes all over the globe.

Enagic’s Kangen Water systems enhance nature’s most vital life-source using the latest scientific research and technology, merged with superior Japanese craftsmanship

Enagic International is the only water filtration and alkaline-ionizer distribution company in the world with its own OEM manufacturing facility in Japan and ISO certified quality control processes. All employees must master high-level technological knowledge and proficiency throughout the entire process, including development, production, supply, and service.

Clear water gently washes ashore on the beach.

Made in Japan

Our machines are individually assembled by artisans and then inspected, tested, and certified by highly-trained QC engineers.

Get fast and efficient support from our experienced technicians and international service centers when needed. Always ask your water-ionization system provider for the kind of support service and warranty you will get from them.

Enagic celebrates over 5 decades as a specialized manufacturer of high quality water ionizer generating systems. Today Enagic's pledge to realize a revolution in True Health - in the form of physical health, economic health and mental health - is supported by thousands of people around the world.

The human body is comprised of over 70% water. It is no exaggeration to say that "the basis of vitality and long life is water." Enagic offers safe water that can be used with confidence to benefit health, beauty, sanitation and cuisine.

Enagic is an integrated development, manufacturing, sales and service company of alkaline ionizer technology.

As the evolution of information technology continues we have entered the age of "human technology marketing." Market vitality now depends upon a merging of high technology and the personal relationship between human beings. Enagic is teaming up with an international network of offices and numerous distributors around the world to spread the word "water and health" while building a global company with worldwide operations.

Hironari Ohshiro

CEO Enagic International

certifications

Enagic International is certified to ISO 9001, ISO 14001, and ISO 13485 for quality control and environmental management, and a member in good standing of the prestigious Direct Selling Association.

Learn More about our Prestigious Certifications

The Mighty 8-Plate Anti-oxidizer

The K8 (Kangen 8) is Enagic's most powerful antioxidant machine - featuring 8 platinum-dipped titanium plates for improved water ionization and increased antioxidant production potential.

Learn More about our Flagship Model Here

Interested In Ordering A K8 Ionizer?

All of enagic's products are sold only through registered distributors. Contact us directly to order yours today.

Interested In Ordering A K8 Ionizer?

All of enagic's products are sold only through registered distributors. Contact us directly to order yours today.

Explore Medical Studies by Disease Model

Want to see what the research says? Browse peer-reviewed studies on molecular hydrogen, organized by health topic, from sources such as PubMed and Google Scholar.

Deep Dive Into Molecular Hydrogen Water

Get free access to our water hub-a library of videos, resources, and guides you can browse at your own pace to learn about all the ways molecular hydrogen water can make a difference in your life.

Geek Out On The Science

Ever wonder how ordinary tap water transforms into antioxidant-rich molecular hydrogen water? Here's the step-by-step science behind the process.

FAQs

Your Questions Answered: Everything About Molecular Hydrogen Water

Why start drinking 8.5 Molecular Hydrogen Water first?

While there are no known side effects to drinking molecular hydrogen water, it’s a very effective antioxidant that supports detoxification and flushing of your system. Depending on your current health, some people may notice mild detox symptoms as the molecular hydrogen does its work. For this reason, we recommend starting with 8.5 pH Molecular Hydrogen Water for a week or two before increasing to 9.0 or 9.5.

Can I take medication with Molecular Hydrogen Water?

No. Because molecular hydrogen can diffuse rapidly across cell membranes, it’s not recommended to take medication with it, as it may alter the rate of absorption. Medications should be taken with 7.0 pH clean water instead.

Can infants and children drink Molecular Hydrogen Water?

For children and seniors, setting a low pH to start and gradually increasing it is also recommended as the body adjusts to the pH level.

In the case of infants (until about a year old), since breast milk or milk is the only thing they consume, the intestinal movement is generally different from adults, and the use of Molecular Hydrogen Water is not encouraged until the infant begins to consume more sophisticated foods. As with medications (see above FAQ), Molecular Hydrogen Water should not be used to make powdered milk for infants.

Why can't I buy bottled Molecular Hydrogen Water?

Molecular hydrogen (H₂) is a tiny gas molecule that gives this water its antioxidant properties. Once it’s dissolved, it starts dissipating almost immediately — slipping out through microscopic pores in most container materials. It doesn’t take visible leaks. It will also react with oxygen in the water or the air at the top of the bottle.

By the time bottled water reaches store shelves — usually weeks or months after it’s packaged — the H₂ (and therefore the antioxidant benefits) would be long gone. That’s why Molecular Hydrogen Water is best made fresh, ideally right before/same day you drink it.

How does an ionizer make Molecular Hydrogen Water & how is that different from bottled Alkaline Waters I see in stores?

An ionizer uses electrolysis — an electrical process — to split water into two streams: one rich in molecular hydrogen (H₂) and more alkaline, and another more acidic. The alkaline, hydrogen-rich water offers antioxidant properties thanks to dissolved H₂. Click here for a more detailed dive into the science of electrolysis.

Most bottled “alkaline waters” are made chemically, by adding ingredients like sodium bicarbonate (baking soda) to raise the pH. This changes the chemistry of the water, but it doesn’t create molecular hydrogen or improve the water’s oxidation-reduction potential (ORP).

Because it’s chemically altered, drinking large amounts of baking soda–based alkaline water over time can lead to excessive intake of those additives, which may have negative side effects. You can usually spot this by checking the ingredient list — if you see “sodium bicarbonate” or other additives, that’s how it was made.

Molecular Hydrogen Water or Electrolyzed Reduced Water (ERW) from an ionizer is different: it’s produced fresh, without additives, and contains dissolved molecular hydrogen — the key element behind its antioxidant health benefits.

What ionizer do you use and recommend for making Molecular Hydrogen Water?

I personally use, recommend, and sell Enagic’s line of water ionizers. After doing my research, I found Enagic to be unmatched in both quality and credibility:

- Medical-grade appliance and recognized as a pre-approved medical device by Medicard in Canada.

- A Japanese company with over 50 years in business, holding multiple ISO certifications.

- Built with OEM (Original Equipment Manufacturer) parts only for quality and longevity.

I use Enagic’s K8 model, which offers advanced filtration, eight platinum-dipped titanium plates, and multiple water settings — including hydrogen-rich drinking water, cleaning water, and emulsifying produce wash water.

Click to learn more about Enagic, their certifications, and the K8 ionizer here.