Up to 9,000 PPB · manufacturer data

Verifiable with a DPD test · kit ~€20

5-year cell warranty

60-day money-back guarantee

Tracked delivery offered in France

Pay in 4 installments with Klarna

Testimonials

Real.
Verifiable.

We will publish feedback as we receive it, with the consent of the authors — the less flattering ones too.

Have you received your Flask? Share your feedback at sav@hydrogenyx.fr.

In the meantime, the verifiable is already there: DPD test concentration, 5-year cell warranty, 60-day money-back guarantee.

Figures

Verifiable, not guesswork.

9,000

PPB announced by the manufacturer · verifiable by DPD test

60 days

satisfied or your money back

5 years

warranty on the cell

4,500

mAh battery · wireless charging cradle included

In the meantime

Judge on evidence,
not on stars.

The comparative

HYDROGENYX Flask vs. classic H₂ bottles, criterion by criterion. Factual, verifiable.

Science

Hundreds of studies published since 2007 on molecular hydrogen — an active field of research.

The Guarantee

5-year warranty on the cell, 60-day money-back guarantee. The conditions, in black and white.

Your Feedback

Your opinion is worth more
than an advertisement.

  1. Live with it, 60 days

    Time to establish your hydration ritual: morning, sport, office. This is the duration of our satisfaction or your money back trial.

  2. Measure, if you're so inclined

    DPD kit ~20 € online: check the concentration yourself. Photos of test results are welcome.

  3. Write to us

    sav@hydrogenyx.fr - your feedback published as is, with your agreement. Even the less flattering ones.

Commitment

"We will also publish less flattering feedback. That's the condition of an honest brand — and the only way to improve."

HYDROGENYX Team

HYDROGENYX Flask

Be among the first.
€239 instead of €299.

Tracked delivery · 60-day satisfaction guarantee or your money back · 5-year warranty · 4 interest-free payments with Klarna

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

Questions? FAQ · Comparison · Warranty