Nowadays, many businesses promote that sweat has color, which should be a gimmick, mainly to promote blood circulation and metabolism. For example, the color of sweat should be body dirt and clothing pigment deposited on the skin surface. Xinhong can be officially promoted but not promoted. You can watch official website, and the formal publicity materials will mark: This product is not a medical device, but is sold as a sports device. These treatments are purely promoted by dealers themselves. Light wave room can promote blood circulation and partially replace exercise, but it is impossible to cure all diseases.