Hydrogen (H₂)

The smallest molecule with a big impact

Molecular hydrogen (H₂) is the smallest molecule in existence — small enough to effortlessly cross cell membranes and reach the mitochondria directly. There, H₂ acts as a selective antioxidant: it specifically neutralizes the most harmful free radicals (hydroxyl radicals, ·OH) while leaving beneficial reactive oxygen species intact that the body needs for signaling and immune function.

At cryodukt in Zurich, you inhale ultra-pure molecular hydrogen through a comfortable nasal cannula — 45 minutes, non-invasive, with no side effects. You can read, work, or simply relax during the session.

The Technology

Our devices use PEM/SPE technology (Proton Exchange Membrane / Solid Polymer Electrolyte). A specialized membrane electrolyzes distilled water into pure molecular hydrogen (H₂) on one side and oxygen (O₂) on the other — achieving over 99.9% purity. PEM/SPE is considered the gold standard for medical-grade hydrogen production.

What does the research say?

Over 74 human clinical studies have explored the potential of molecular hydrogen across diverse medical disciplines:

• Cardiovascular: Improved post-cardiac arrest survival
• Oncology: Improved quality of life during radiotherapy
• Neurology: Cognitive improvements in Alzheimer’s APOE4 carriers
• Respiratory: COPD symptom improvement with H₂/O₂ therapy
• Metabolic: Reduced cholesterol and glucose in metabolic syndrome
• Liver: Significant liver fat reduction
• Longevity: Reduced mortality risk over 3.3-year observation
• Autoimmune: Reduced disease activity in rheumatoid arthritis
• Sports & Performance: Reduced lactate and perceived exertion
• Anti-Aging: Favorable effects on telomere length in older adults
• Skin: Measurable biological skin age reduction
• Mental Health: Reduced anxiety and mental fatigue
• Oxidative Stress: Reduced blood ROS levels

Important note: Many studies have small sample sizes and are pilot or preliminary in nature. The field of molecular hydrogen research is actively evolving. The information provided here is for educational purposes only and does not constitute medical advice.

Safety Profile

Molecular hydrogen has an excellent safety profile:

• No serious adverse effects reported in any clinical trial, regardless of delivery method (inhalation, water, IV, bathing, capsules)
• Japan approved H₂ inhalation as Advanced Medical Treatment (Class B) for post-cardiac arrest care
• China included H₂/O₂ therapy in official COVID-19 treatment guidelines
• H₂ concentrations below 4% in room air are considered safe and non-explosive

Our PEM/SPE devices fully separate H₂ and O₂ to prevent combustible mixing inside the device. Sessions take place in ventilated rooms — ambient air concentrations remain far below the flammability threshold.

The process at cryodukt

1. Consultation: Brief discussion about your goals and any questions
2. Inhalation: Take a comfortable seat, nasal cannula is placed — 45 minutes of pure H₂
3. Optional: Combination: H₂ pairs perfectly with cryotherapy, or HBOT
4. Done: No downtime required. You’re immediately ready to go

The ideal combination

Hydrogen inhalation reaches its full potential when combined with our other treatments:

• H₂ + Cryotherapy → Recovery on two levels: cold plus selective antioxidant
• H₂ + HBOT → Maximum oxygen and hydrogen supply for your cells

Only at cryodukt in Zurich can you get all these modalities under one roof.

Who is H₂ inhalation for?

• Longevity enthusiasts: Anti-aging at the molecular level
• Athletes: Faster recovery, less oxidative stress after training
• Stressed individuals: Reduction of mental fatigue and anxiety
• Biohackers: Complement existing protocols with the smallest molecule
• Chronically affected: Support for inflammatory processes (after medical consultation)