I was surprised by the effect of "black silica".
The birth of "PROMO THERMO" was an encounter with the president of a material manufacturer who has been researching black silica for many years.
A surgeon at Osaka University was involved in a clinical trial of this material, and he introduced it to me when he said, "I wonder if I can spread this material more widely to the world and help people in need."
After seeing various clinical trial data from the president of a material manufacturer, registration certificates from the U.S. FDA (Food and Drug Administration), and letters from customers, I felt that it would be a waste to leave this wonderful material buried, and I launched Promothermo with the hope that everyone in the world would know the goodness of black silica.
It stores the heat and body temperature of the sun and emits far-infrared rays.
That is the peculiarity of this material. The material itself does not use electricity or have a heat source.
But strangely, you can feel it getting warmer just by touching it.