The Source — the HYDROGENYX Journal
Olivier, 67, retired, 4-month journal
Paul Fournier
— WEEKLY EDITION · TUESDAY AUGUST 4 —
He logged every cycle for 122 days.
Olivier R., 67, retired engineer (Schneider Electric, 38-year career), Saint-Étienne. Bought ELITE 9K in April 2026 on his cardiologist's recommendation.
Olivier's method (engineer at heart): exactly 3 cycles/day (morning, lunch, evening), DPD measurement once a week for 4 months = 16 measurements + Oura ring tracker night by night (122 cumulative nights).
DPD measurements: median 9,020 PPB, standard deviation 180 PPB. No drift over time.
Oura sleep tracking: +52 minutes on average of deep sleep per night vs 30-day baseline. Sleep onset latency reduced from 18 min to 11 min on average. «I can't claim it's just the H₂, but it's the only routine change.»
122 nights Oura tracker · 9,020 PPB median · +52 min Deep sleep
«Methodical retirees are our best documentarians. Olivier measures without commercial bias.»
Paul Fournier · HYDROGENYX Founder
HYDROGENYX Flask
The hydrogen ritual, ready in 5 minutes.
Up to ~9,000 ppb of dissolved molecular hydrogen (manufacturer's data), verifiable at home with a DPD test. 400 ml, touch screen, wireless charging base included.
60-day money-back guarantee · 5-year cell warranty · 4× Klarna
The HYDROGENYX Flask is a water preparation device, not a medical device. It does not prevent, treat, or cure any disease.
To go further: the science of hydrogen · the comparison · the FAQ
