Tourmaline is a kind of natural gem, which is called tourmaline in mineralogy. It is a boron-containing silicate mineral with complex composition. Generally in the form of columnar crystals. Tomalin is both a crystal, a dielectric and a charged stone. Tomalin has health care function. One of them: micro-current with bioelectrode. All kinds of cells, tissues (muscles, nerves and other tissues) and organs (heart, brain and so on. When it is relatively static or active, it is charged with potential and changing potential, which promotes metabolism, regulates the central nervous system and autonomic nervous system, and regulates the function of cerebral cortex, which is beneficial to improve heart rhythm and blood circulation, especially microcirculation; It is a benign signal for the regulation of body fluids inside and outside the cell membrane, especially for ion exchange, energy exchange and information exchange. One of them: it has the function of making water instantly negative. Can make human body fluids weakly alkaline and adjust the body to the best state; Make active oxygen non-toxic, ensure a healthy internal environment and resist the invasion of harmful factors; Activate cells to ensure normal metabolism; Purify blood and eliminate toxins; Restore fatigue and ensure vigorous energy; Adjust the balance of autonomic nervous system to ensure the normal operation of internal organs; Enhance disease resistance and reduce the occurrence of diseases; Analgesic and sedative effects; Improve allergic constitution and prevent the occurrence of immune abnormal diseases; Delaying aging and promoting health and longevity.