Brand from Japan: Health Lab. Carbon dioxide bubbles are emitted along with far-infrared rays, making your body feel warm and refreshed to the core!Feel like taking a bedrock bath in the bathtub!How REDTAB keeps your body warm!Made with domestically produced “Matera PowderMatera Powder is a natural rock powder that emits a large amount of far-infrared rays.Far-infrared rays, which are familiar from bedrock baths, are said to warm the body and promote metabolism, making it effective for beautiful skin.The carbon dioxide gas dissolved in the hot water is absorbed through the skin and dilates blood vessels, increasing blood flow. As a result, the body is warmed to the core.Contains Vitamin C Chlorine-removing ingredientsHow to use:Put one tablet of this product (approx. 50 g) into a bathtub (approx. 200 liters of water) and allow it to dissolve completely before taking a bath.