Terahertz Gua Sha Comb Type Scalp Care Next-generation beauty tool that repairs cells With pouch Approximately 80mm x 50mm x 8mm 50.5g 【Terahertz】 Terahertz ore is a mineral artificially created by melting quartz at high temperatures and collecting silicon. The 1 trillion vibrations per second (terahertz waves) emitted by terahertz ore penetrate various substances such as wood and plastic. Also, because of its high thermal conductivity, when applied to ice, the vibrations plus the heat conduction from the hand quickly melt the ice. It is said to have the effect of promoting blood flow and enhancing natural healing ability, and is widely used in medical and industrial fields. It is attracting attention for its positive effects on beauty and health, such as cell activation, improved blood flow, and skin elasticity.