Molecular Hydrogen FAQ

Is hydrogen water similar to alkaline water?

Hydrogen water has the same pH as the water you used to produce the hydrogen water. The hydrogenation process does not change the pH of the water. If you prefer to drink alkaline water, you can use alkaline water in your hydrogen bottle.

Does hydrogen water taste different from normal water?

Hydrogen water typically does not have a distinct taste that differs from normal water. Since molecular hydrogen (H2) is a colourless, tasteless, and odourless gas, when it's dissolved in water, it generally does not alter the flavour profile of the water. People who drink hydrogen water usually report no significant difference in taste compared to regular water.

However, individual taste perceptions can vary, and some people might notice a very slight difference, much like how some people can distinguish between the mouthfeel of flat water and carbonated water.

When was hydrogen’s therapeutic benefits first discovered?

The therapeutic benefits of hydrogen gas were first noted in a scientific context in the late 18th century. However, it wasn't until much more recently that these benefits began to be seriously considered and investigated in medical and scientific research.

In 1975, a study by Dole and colleagues at the Baylor College of Medicine used hyperbaric hydrogen to treat mice with skin tumors, which yielded some promising results in terms of reducing tumor growth. This study marked an early instance of scientific research into the medical application of hydrogen.

The pivotal moment for the therapeutic use of hydrogen came in 2007 when an article was published by Dr. Shigeo Ohta in the journal "Nature Medicine." The study showed that hydrogen acted as a selective antioxidant, selectively reducing cytotoxic oxygen radicals in cells, which opened the door to the vast potential of hydrogen in therapeutic and clinical applications. This was when the concept of hydrogen-rich water and its potential health benefits started gaining significant attention.

Following this discovery, there has been increasing interest in the potential health benefits of molecular hydrogen, with research exploring its effects on various medical conditions, including its anti-inflammatory, antioxidant, and anti-apoptotic properties. The research is ongoing.

As of the end of 2022, this number had increased significantly, there were more than 2,000 publications on molecular hydrogen therapy according to data retrieved from the PubMed database,  many of which are original studies​​.  The numbers of new studies are increasing significantly, reflecting growing interest and research activity in this area over recent years.

The following link provides a list of hydrogen studies including lung, brain,  cancer, heart, ,eyes and ears, bones  and more.

Scientific Studies Archives - MHI (

Won’t dissolved hydrogen gas immediately escape out of the water?

Hydrogen gas begins to dissipate once infused into water, but it doesn't disappear all at once. The duration that hydrogen gas remains in water can remain for minutes to several hours, influenced by factors such as surface area exposure and movement of the liquid. Similar to how carbonated beverages hold onto their carbon dioxide (CO2) for a time before losing their fizz, hydrogen-enriched water retains its extra molecules for a period before they diminish to levels less likely to offer benefits. Therefore, it's advisable to consume hydrogen water shortly after its preparation to ensure you experience its full potential

For best results, please consume the hydrogen water within 10-15 minutes of hydrogenation, as the hydrogen content in the water decreases over time. Placing the water in a sealed stainless steel container immediately after hydrogenation will help preserve the hydrogen content for a longer period of time (up to a few hours).

Is Molecular Hydrogen Safe for Kids?

When will I start noticing the effects of hydrogen water?

Right from the start you will notice you have more energy, are better hydrated, with improved general well-being, better digestion and better quality rest. But if you are talking about important improvements, you will only notice these after a few weeks or even months, if you manage to reduce oxidative stress, which is the cause of most illnesses and premature aging

The onset and noticeability of the effects of hydrogen water can vary widely from person to person, depending on individual health status, the concentration of hydrogen in the water, frequency of consumption, and personal sensitivity to changes in the body.

Some people might notice effects such as increased energy or improved alertness and better digestion relatively quickly, possibly within a few days to a week of regular consumption. Others may not notice these subtle changes as distinctly and may need to consume hydrogen water for a longer period, sometimes several weeks or even months, to perceive any benefits.

For certain health outcomes it may take a more extended period of consistent use to observe any noticeable changes. These effects could be subtle and not immediately apparent without specific medical testing. Similar to say taking vitamin C, you should not “notice” any real difference, even though the benefit has been proven by scientific research.

How much hydrogen water should I drink a day?

The ideal hydrogen water intake may vary depending on intended use and user's specific needs. The recommended daily water intake is between 1-3 liters. Consuming more than one glass per day may already be beneficial for regulating oxidation levels. However, drinking 4 bottles or more (about 1.5 liters) of H Fizz hydrogen-rich water per day may provide better therapeutic benefits.

If it is your first time consuming hydrogen water, start with one bottle per day and gradually increase to four bottles over a week or two.  Some people may experience abdominal discomfort when they first start to drink hydrogen water. This should resolve over time. Otherwise, cut down the amount and only gradually increase again when you feel comfortable. Please reduce or stop consumption if you experience other symptoms or discomfort from drinking hydrogen water.

Can I drink hydrogen water instead of taking my medication or supplements?

No. We recommend hydrogen therapy as an on-going supplemental tool to maintain your health and your well-being. It should not replace any medication or other health supplements such as vitamins you are taking.