Hydrogen-rich water, also known as hydrogen water, has gained attention for its potential health benefits, primarily due to its antioxidant properties. Scientific studies suggest that dissolved hydrogen in water helps reduce oxidative stress, which is linked to many chronic diseases, including cardiovascular disease, neurodegenerative conditions, and certain types of cancers.

Research indicates that hydrogen molecules are small enough to permeate cellular membranes and may act as an antioxidant that selectively neutralizes harmful reactive oxygen species (ROS) in cells. This selective antioxidation may reduce inflammation and help protect against cellular damage without interfering with beneficial ROS that the body uses for cell signalling and immune response.