The HYDROGENYX Journal

La Source — HYDROGENYX Journal

Molecular hydrogen, hydration, maintenance: short, referenced articles, without promises — to understand before buying.

J'ai mis 6 ans à comprendre pourquoi je vieillissais 2× plus vite que mes copines. Image

It took me 6 years to understand why I was ageing twice as fast as my friends.

Sophie, 47, took six years to understand why she was ageing twice as fast as her friends. The diagnosis was neither thyroid nor hormonal nor sleep. It was molecular. A testimony and a synthesis of 18 years of Japanese molecular hydrogen research.

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HYDROGENYX — eau hydrogénée, visuel La Source Image

Olivier, 67, retired, 4-month journal

A methodical retiree has kept a DPD journal since April. Deep sleep +52 min.

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On a refusé 14 cellules en juin Image

We rejected 14 cells in June

Workshop QC standard: why 8% of cells come out rejected.

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Eau hydrogénée diabète type 2 — protocole Kajiyama 2008 peer-reviewed HYDROGENYX Image

Hydrogenated water and type 2 diabetes — reading the Kajiyama 2008 protocol

Detailed reading of the Kajiyama 2008 crossover RCT (n=30) on type 2 diabetes: design, measurements, results LDL-ox −15.5%, and how to integrate carefully with your diabetologist.

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Comment voyager avec HYDROGENYX Flask — avion, bagages, douane 2026 Image

How to Travel with ELITE 9K — Flight, Luggage, Customs (2026)

Complete guide to traveling with ELITE 9K in 2026: IATA cabin rules, TSA/customs checks, extreme climates. 6.7 Wh battery = cabin approved.

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HYDROGENYX — eau hydrogénée, visuel La Source Image

ELITE 9K vs HydroFlask Hydrogen — Performance comparison

ELITE 9K (glass 750 mL, 9,000 PPB) vs HydroFlask Hydrogen (steel 500 mL, 5,500 PPB): why material and concentration create a 2× gap.

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Gourde à hydrogène voyage — IATA avion train climats extrêmes HYDROGENYX Image

Hydrogen bottle when traveling — IATA, planes, trains, extreme climates

Complete travel guide with H2 bottle: 4.44 Wh IATA-compliant battery, empty in cabin, verified airlines, extreme climates, water quality abroad. Long-haul pilot case study.

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Le bilan du semestre : 184 unités livrées Image

Half-year report: 184 units delivered

H1 report — production, warranty returns, satisfaction rate.

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Cerveau brain fog brouillard cerebral — protocole 90 jours hydrogene moleculaire H2 Image

Brain fog: 5 lesser-known causes + 90-day science-backed protocol

5 lesser-known causes of brain fog (cerebral oxidative stress, inflammation, neuroinflammation, dehydration, dysbiosis) + 90-day protocol based on Saito 2018 and peer-reviewed literature.

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HYDROGENYX — eau hydrogénée, visuel La Source Image

How to recharge HYDROGENYX Flask via USB-C — Optimize battery life

How to charge the HYDROGENYX Flask via USB-C without damaging the 4,500 mAh LiPo battery, and extend its lifespan (5-year warranty).

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Go further

Science, without the marketing.

Hundreds of studies published since 2007 (Ohsawa, Aoki, Ostojic, LeBaron). Our Science page sorts it out: what has been studied, what remains to be proven.

Got specific questions? Check our FAQ.

HYDROGENYX Flask

From reading
to ritual.

Up to ~9,000 ppb of dissolved molecular hydrogen (manufacturer's data), verifiable with DPD test. Designed to last: 5-year warranty on the cell.

Free tracked shipping · 60-day satisfaction guarantee or your money back · 5-year warranty · 4x Klarna

The HYDROGENYX Flask is a water preparation device, not a medical device. It does not prevent, treat, or cure any disease.