The Source — the HYDROGENYX Journal
Journal · 16/10 — Why 5L/day is useless: tissue H₂ saturation
Paul Fournier
Beyond 750 mL/day, the body exhales the excess. Physical-chemistry pharmacokinetics explained.
Half-life 6 min plasma. Plateau 750 mL/day. The rest is exhaled.
Dissolved molecular hydrogen has a plasma half-life of about 6 minutes (Aoki 2012, Shimouchi 2009). Tissue half-life ~20 min (skeletal muscle, measured by in vivo H₂ microelectrode).
That means a 250 mL bolus of HRW at 9,000 PPB reaches its plasma peak in ~10 min, then exponential decay. Beyond 30 min, the plasma concentration returns to endogenous baseline (~0.5 ppb produced by the colonic microbiota).
So multiplying the dose does NOT increase the duration of tissue exposure — it only increases the absolute peak. And the absolute peak plateaus at the gas solubility (1.6 mg/L at 22°C, 1 atm). Beyond that, the body exhales it through the alveolar capillaries.
Our 750 mL/day protocol over 3 cycles spaced 4-6 h apart reproduces the Korovljev 2018 and Aoki 2012 profile — repeated fragmented tissue exposure. Drink 5 L in one go: you exhale 4.25 L of H₂ without benefit and increase diuresis.
Physiology is non-negotiable. Dose-response is documented.
“Selling 5 L per day would have blown up our AOV. We sell the right dosage instead.”
— Paul Fournier, Founder of HYDROGENYX
In numbers
- 6 min — Plasma half-life
- 1.6 mg/L — Solubility at 22°C
- 750 mL/day — Optimal plateau
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
