This Gua Sha tool is made with Bian Shi (砭石), a micro-crystalline stone that contains more than 30+ minerals and trace elements that are beneficial to the human body. Mineralogy studies show that Bian stone creates far-infrared waves, ultrasound pulses, and negative ions that help boost and regenerate healthy human cells and DNA.
This cosmic stone was formed 65 million years when a meteorite landed in Shandong, China. Stone-age excavation found tools made with Bian stone for surgery and healing.
High quality Bian stones are limited. This is sourced from Shandong, China, the only place in the world that produces Bian stone. YINA Gua Sha is produced by a certified facility that creates medical grade Bian tools.
Bian stones come in a range of colors from brown to grayish black. The highest grade of Bian stones are Xuan Huang 玄黄 - rich brown with copper undertones. These are the stones in our current batch.
No two stones are completely alike. Stones with naturally- formed yellow spots are considered more rare and valuable.
