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.
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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.
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Measure, if you're so inclined
DPD kit ~20 € online: check the concentration yourself. Photos of test results are welcome.
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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