Sodium Bicarbonate, better known as baking soda, a refined, soluble, white powder. It is found in nature as the mineral called Nahcolith, among others in the US.
Sodium Bicarbonate is used in a wide variety of food and cosmetic products. In tubbubble, we use it to help our product fizzle when in touch with bath water. It also has a skin soothing and cleaning effect.