Hydrogen molecule (H2) has been indicated as a novel anti-oxidant reagent specifically targeting OH free radicals. This invention discloses the methods and apparatus that can be used to increase the hydrogen concentration in water, in beverages, and in other hydrogen absorbing materials through a sealed hydrogen gas producing chamber made of materials that have good hydrogen permeability and can withhold gas pressure. The disclosed method and apparatus can increase the hydrogen concentration quickly without leaking other chemical by-products of the gas producing system into the treated materials.
