Hydrogen water is regular water infused with dissolved molecular hydrogen (H2) gas, and the NuRich Echo Flask makes it on demand by running an electrical current through water in a process called electrolysis, splitting water molecules and releasing hydrogen gas directly into your drink in about three minutes — no tablets, cartridges, or plumbing required.
What "Hydrogen Water" Actually Means
Despite the wellness-aisle branding, hydrogen water isn't a flavor or an additive — it's plain water with extra dissolved hydrogen gas, the same H2 you learned about in chemistry class. Hydrogen is the smallest, lightest molecule that exists, which is why it dissolves into water easily but also why it escapes just as easily once the water is exposed to open air. That's the core reason hydrogen water is typically made fresh right before drinking rather than bottled and shelved for weeks (Medical News Today, hydrogen water overview).
How the Echo Flask Generates It
The Echo Flask uses a rechargeable SPE/PEM (solid polymer electrolyte / proton exchange membrane) generator built into the base of the bottle. Fill the flask with water, press the activation button, and the unit runs a low-voltage electrolysis cycle that separates water into hydrogen and oxygen, infusing the hydrogen back into the water while venting the oxygen. The full cycle takes roughly three minutes, and because the process happens right in the bottle, the hydrogen concentration is highest at the moment you drink it — which matters given how quickly H2 gas escapes into the air once water is exposed.
What the Research Says So Far
Hydrogen water research is still an early and developing field, but it is being studied seriously. A 3-month randomized controlled trial on electrolyzed hydrogen water in adults with metabolic syndrome and pre-metabolic syndrome found measurable improvements in several metabolic markers among participants who drank it regularly (NIH/PMC, 2023 randomized controlled trial). Separately, a 2023 meta-analysis of seven clinical trials reported small but statistically significant improvements in total cholesterol, LDL cholesterol, and triglycerides among hydrogen water drinkers. Across the dozens of human clinical trials conducted so far in Japan, China, the U.S., and Europe, no serious adverse events have been reported, which is why hydrogen water is generally considered safe to try — but researchers are clear that larger, longer trials are still needed before it can be called a proven treatment for any condition (NIH/PMC).
Hydrogen Water vs. Alkaline Water
The two are frequently confused but work on entirely different mechanisms. Alkaline water is simply water with a higher pH, achieved by adding minerals or through electrolysis that separates water into an alkaline stream and an acidic stream — the change is chemical (pH), not compositional. Hydrogen water, by contrast, keeps a neutral pH and instead adds dissolved H2 gas molecules into the water itself. That distinction matters because most of the research interest in hydrogen water centers on the antioxidant behavior of the H2 molecule at the cellular level, not on pH — so a hydrogen generator like the Echo Flask isn't trying to make your water more alkaline, it's adding a specific molecule that dissolves and later off-gasses.
Who Tends to Try It
Most people reaching for hydrogen water are simply looking for a way to make their daily water routine feel like it's doing a little more — that's a personal wellness choice, not a medical one. If you already carry a bottle throughout the day, an on-demand hydrogen generator like the Echo Flask lets you make a fresh batch whenever you refill, rather than relying on pre-made hydrogen water products that lose potency by the time they reach the shelf.
Getting the Most Out of Your Echo Flask
Use filtered or bottled water when possible — heavy mineral content in hard tap water can shorten the life of the generator's membrane over time. Drink your hydrogen water within a few minutes of the cycle finishing, since the gas will gradually off-gas once you open the cap. And recharge the flask fully between uses; a depleted battery will shorten the generator cycle and reduce hydrogen concentration.
Make Your Own Hydrogen Water
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This article is for general informational purposes and is not medical advice. Hydrogen water is not intended to diagnose, treat, cure, or prevent any disease. Consult a healthcare professional before using any wellness product for a specific health condition.
Sources: Medical News Today — Hydrogen Water: Definition, Benefits, and More; NIH/PMC — Health Effects of Electrolyzed Hydrogen Water RCT (2023)