Features of Ganbanyoku

At room temperature, far-infrared rays and negative ions are released from the magma stone beds.  The far-infrared rays are commonly known as "Growth Rays" and have the ability to penetrate deeply up to 1.5 inches into the skin and also the joints and muscles.  They gently elevate the body’s surface temperature and activate major bodily functions and speeding up the release of toxins through perspiration. 

Magma stone beds will emit high negative ion like forests and coastal areas where there is an abundance of fresh and clean air.