Abstract: A bottle made of polyethylene terephthalate does likely undergo that a gas having a small molecular weight or volatile component escapes from the bottle in a short time in comparison with a glass bottle, steel can, and aluminum can. For a countermeasure, a simple operation prevents hydrogen molecules, helium gas, and volatile component from scattering and being lost. A container filled with gas, or liquid or viscous fluid in which gas is dissolved, or metal granules adsorbing gas is given a cap, and then, the whole of the container including the cap is packed with a metal foil laminated film superior in gas-barrier properties to be vacuum packaged.

Abstract: There is provided an external-use composition that is incorporated with a hydrogen storing metal alloy keeping the hydrogen and generating the hydrogen, and that has the antioxidant effect, anti-inflammation effect and antiallergic effect. There is provided a skin external-use composition that is incorporated with a fine particle of hydrogen storing alloyed metal, such as magnesium hydride.