9,000 PPB · DPD Reagent Verifiable

60-day money-back guarantee

5-year cell warranty

Tracked delivery offered · France

Pay in 4 installments with Klarna

FAQ

All you need to know.
Straightforward.

Precise answers, without jargon. Not yours? Write to us: contact@hydrogenyx.fr — response within 24 business hours.

Produit

HYDROGENYX Flask in detail.

What is molecular hydrogen H₂?

Molecular hydrogen (H₂) is a colorless, odorless gas, the smallest chemical element. It has been studied since 2007 for its selective antioxidant properties. Several hundred published studies explore its effects (Ohsawa 2007, Aoki 2012, Ostojic, Kajiyama, LeBaron).

Why 9,000 PPB and not more?

9,000 PPB is the useful saturation plateau in SPE/PEM electrolysis for daily use. Beyond this, additional concentration dissipates quickly, and cell autonomy decreases. This is our compromise: maximum stable concentration over 30 cycles.

How do I measure concentration at home?

Concentration can be checked with the DPD reagent — the reference colorimetric method: a few drops, the water changes color, and the level is read. To check at home: DPD test kit available online (~€20) · filtered water · electrolysis 5 or 10 min · color chart comparison. Result in 30 seconds. Video tutorial in La Source.

What is the battery life?

30 electrolysis cycles per charge (5 to 10 min cycles). Charge via wireless base or USB-C. Battery life: 800+ cycles.

What is the lifespan of the cell?

4th generation SPE/PEM Pt-Ir cell. 5-year warranty: if it no longer produces properly hydrogen-enriched water (checked with DPD reagent), free replacement.

Order & Delivery

Order, deliver, return.

What are the delivery times?

Standard 6 to 10 working days free, tracking included · Express 4 to 8 days €10.99. Upon receipt, the concentration can be verified using the DPD reagent (reference colorimetric method).

How's the return process?

60-day money-back guarantee. Email contact@hydrogenyx.fr · return label provided · refund within 5 to 7 days after receipt of your return.

What payment methods do you accept?

Credit/Debit Card (Visa/Mastercard/Amex) · Apple Pay · Shop Pay · PayPal · Klarna interest-free installment payments. Secure payment powered by Shopify (PCI DSS compliant).

Do you deliver outside France?

Yes. Belgium, Switzerland, Luxembourg, Germany, Netherlands, Italy, Spain, Portugal. Same delivery times. International tracked delivery.

What to do if the package arrives damaged?

Refuse to sign OR accept with written reservations. Photo + email contact@hydrogenyx.fr within 48 hours. Free immediate return.

Science & Health

Studies and effects.

What effects did you experience?

User feedback most often mentions energy, clarity, and recovery after a few weeks of regular use. Effects vary from person to person and are not guaranteed. Hydrogen is not a medicine and does not replace any treatment.

What does scientific research say about hydrogen?

Several hundred published studies explore H₂ as a selective antioxidant (targeting OH· and ONOO-) without affecting useful ROS (Ohsawa 2007). Aoki 2012 (football players): decrease in blood lactate observed during exercise. Results observed in study — not a promise of individual results.

Are there any contraindications?

No major contraindications known to date. H₂ is physiological · naturally produced by the microbiota. Seek medical advice if pregnant, breastfeeding, or on chronic medication (as a precaution).

How many times a day?

Normal use: 1 to 3 glasses per day. Morning on an empty stomach · pre-workout · evening. Excess H₂ is simply exhaled through breathing.

How long before I feel an effect?

User feedback typically mentions 14 to 21 days of regular use. Significant individual variation — no effects are guaranteed.

Can't find your answer?

A real team in France will respond to you within 24 business hours. No chatbots.

HYDROGENYX Flask

All the answers. One decision.
€239 instead of €299.

Tracked delivery included · 60-day satisfaction guarantee or your money back · 5-year warranty · 4x Klarna

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