Improve sleep quality with a bicarbonate bath! "BARTH," a bath additive that feels like soaking in a beauty serum, is a neutral bicarbonate bath additive created using unique patented technology. By keeping the water neutral, the bicarbonate ions in the water are less likely to evaporate and dissolve thoroughly. It removes mineral deposits and cleanses even the pores. The dissolved water can also be used for washing hair and face, allowing you to easily enjoy a carbonated spring bath at home. Contains 30 tablets for 10 baths.