Hydrogen Therapy Protects Against Age-Related Damage in Mice Study
Protective Effect of Molecular Hydrogen Following Different Routes of Administration on D-Galactose-Induced Aging Mice
Research hubs: Cardiovascular System · Brain & Nervous System
This research was done in animals. Results in animals often don't carry over to people.
- Evidence type
- Animal study (mouse)
- Authors
- Boyan Liu, Yunbo Xie, Jun Chen, Junli Xue, Xiaoyi Zhang, Min Zhao, Xiubin Jia, Yiwei Wang, Shucun Qin
- Journal
- Journal of Inflammation Research
- Year
- 2021
- PMID
- 34737603
- Study Type
- Mouse
- Delivery
- Gas
- Dose
- 4% H2 inhalation, H2-rich water drinking, and H2-rich saline injection
- H₂ concentration
- 4% H2 gas
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 24 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Breathing in hydrogen gas, drinking hydrogen-rich water, or getting hydrogen-rich saline injections can all help reduce signs of aging in mice by fighting oxidative stress, a damaging cellular process.
Key Finding
Molecular hydrogen reduced oxidative stress and improved aging-related biomarkers in mice across multiple organs (liver, brain, and heart), regardless of whether it was delivered by inhalation, drinking, or injection.
Summary
Researchers tested whether molecular hydrogen (H2), a gas with antioxidant properties, could protect mice from aging-related damage caused by D-galactose. They gave hydrogen to mice in three different ways: breathing it in as a gas, drinking hydrogen-enriched water, or receiving hydrogen-enriched saline injections. Hydrogen improved several aging markers in the blood and reduced oxidative stress (cellular damage from harmful molecules) in the liver, brain, and heart, with inhalation appearing slightly more effective than the other methods.
Practical Takeaway
This mouse study suggests hydrogen may help protect against age-related oxidative damage, but it is early-stage research in animals only. Before any conclusions can be drawn about benefits for humans, clinical trials in people would be needed. The finding that different delivery methods worked comparably is interesting for future research design, but does not yet translate to practical recommendations for consumers.
Abstract (excerpt)
Background: Molecular hydrogen (H2) has been recognized as an effective antioxidant with no or little side effects. While it is known that oxidative stress is closely associated with aging, the beneficial effect of H2 on oxidative stress-related aging is still unclear. In this study, a mouse model…