【What is black silica?】

●　We collect black silica from the lofty mountains of Kaminokuni-machi, Hokkaido.  It is a natural ore formed from diatomaceous sediments 6 billion years ago, and it is academically called ‘graphite silica stone’. It is commonly known as ‘silica black’ or ’black silica’

●There are various natural ores available to the makers of stone-slab baths, but the black silica has exclusively high emission rates of far infrared rays.  The rate is remarkably 98%.

●And it performs maximum emission rates at 39.9’C, so it should be the most fitting combination for the stone-slab bath.

● Every living organism, including human beings, consists of water.  70% of human body is water.

●The water molecules compound clusters, and the impurities, such as body wastes, are trapped in between them.

●The clusters split, by the resonance absorption phenomenon, when irradiating 4-14 micron of far infrared rays, and the trapped impurities can be discharged from one's body then.

●This 4-14 micron range rays are called ‘vital-rays’.  Without these rays, there was no birth of living orgasm on the earth.  Black-silica radiates the ‘vital-rays’ at normal temperatures. (39.9’C)