Hydrogen Therapy Shows Promise for Treating Hearing Loss

Authors
Journal
Medical Gas Research
Year
DOI
10.4103/mgr.MEDGASRES-D-25-00274
Study Type
clinical
Peer Reviewed
Yes
Country
China
Health Condition
Sensorineural Hearing Loss
Body System
Auditory System

TL;DR

Scientists found that hydrogen gas might be able to prevent and treat hearing loss by protecting the tiny hair cells in your ears that help you hear—and early tests on patients showed it actually worked without causing serious side effects.

Key Finding

In animal models and early clinical trials, hydrogen gas administration reduced cellular damage in the inner ear and improved hearing thresholds in patients with radiation-induced and sudden hearing loss, with no serious adverse effects reported.

Summary

This review examines how hydrogen gas might help prevent and treat sensorineural hearing loss (permanent hearing damage caused by damage to inner ear cells). Hearing loss often results from oxidative stress—a type of cellular damage from aging, loud noise, or certain medications. Hydrogen gas acts as an antioxidant (a substance that reduces cellular damage) and has shown protective effects in animal studies and some early human trials, improving hearing measures without serious side effects. However, larger clinical studies are still needed to confirm these benefits and determine the best ways to deliver hydrogen therapy.

Practical Takeaway

While animal research and preliminary human studies suggest hydrogen may help protect hearing and improve hearing loss in specific conditions, these findings are still early-stage. The review itself notes that large-scale clinical trials are needed before hydrogen can be recommended as a standard treatment. Anyone with hearing loss should consult an audiologist or physician rather than relying on hydrogen therapy alone at this time.

Abstract

Sensorineural hearing loss, often caused by irreversible damage to cochlear hair cells, is primarily mediated by oxidative stress triggered by aging, noise exposure, or ototoxic agents. Conventional treatments such as hearing aids or cochlear implants have limitations in accessibility and efficacy. Hydrogen (H 2 ), a selective antioxidant with anti-inflammatory and anti-apoptotic properties, has demonstrated protective effects on various organ systems. This review evaluates the therapeutic potential of H 2 in preventing and treating sensorineural hearing loss and aims to inform future research directions. In preclinical models of sensorineural hearing loss, H 2 administration via inhalation, injection, or drinking water reduces reactive oxygen species accumulation, protects cochlear hair cells, and improves functional hearing markers (auditory brainstem response and distortion product otoacoustic emission). Clinical trials have shown that H 2 inhalation improves hearing thresholds in patients with radiotherapy-induced hearing loss and idiopathic sudden sensorineural hearing loss. No serious side effects have been observed. H 2 's high diffusion capacity and selective reactive oxygen species-scavenging properties support its role as a promising therapeutic for sensorineural hearing loss. While animal data are robust and initial clinical outcomes encouraging, further large-scale studies are warranted to validate efficacy, optimize delivery methods, and establish clinical protocols. JOURNAL/mgres/04.03/01612956-990000000-00088/figure1/v/2026-04-13T130436Z/r/image-tiff.