Why 14 days are enough to feel the difference

Why not 24 hours? Why not 6 months?

Molecular hydrogen has pharmacokinetics with three distinct time scales. Each scale corresponds to a different biological mechanism.

3 minutes: the crossing

H₂ crosses the blood-brain barrier and the mitochondrial membrane within 3 minutes after ingestion. It is the smallest molecule in the universe (0.074 nm), non-polar, neutral. No barrier stops it.

14 days: the felt effect

This is the average time reported for a user to feel a subjective change in well-being (sleep, energy, mental clarity). Why? Because these feelings are multifactorial: sensations related to sleep often stabilize over 7-10 days, those related to energy and recovery over 10-14 days.

90 days: the biological assessment

In studies, when biological markers (CRP, GSH/GSSG, 8-OHdG, ferritin, vitamin D) are monitored, protocols generally extend over approximately 90 days — a duration close to the red blood cell renewal cycle (≈120 days). This is also the order of magnitude adopted by several H₂ research protocols (Ohsawa 2007, Korovljev 2018, Saito 2018). Results observed in studies — not a promise of individual results.

To understand why the 9,000 PPB DPD concentration matters so much: our complete DPD protocol. For scientific context: our dossier 7 peer-reviewed studies on molecular hydrogen.

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