Hot Tab Classic 90 Tablets Brand new, unused. Bicarbonate Hot Tab Hot Tab is a bath additive that allows you to easily enjoy "bicarbonate hot water". Fine carbon dioxide gas changes into bicarbonate ions and dissolves in the hot water, creating a mellow, natural hot spring-like feel. Fragrance-free, colorant-free, and neutral pH, so it can be used with peace of mind even by those with sensitive skin. One tablet completely neutralizes and removes chlorine in the water. [How to use] Use 3 tablets in 160 liters of lukewarm water (37-40 degrees Celsius). (4 tablets for 200 liters) We recommend soaking for 15 minutes or more. For a foot bath, dissolve 1 tablet in a container of 10-30 liters of water, and soak your feet in slightly hot water for about 30 minutes. Slow bathing is recommended for beauty and health. Blood flow increases after 10 minutes with the bicarbonate low-temperature bathing method.