What Is Sodium Bicarbonate?
What It Is
Sodium bicarbonate, commonly known as baking soda, is an alkaline sodium salt widely used in personal-care and cosmetic formulations.
What It Does
The source identifies functions including buffering, deodorising and abrasive use. It is also a key component of many effervescent bath-bomb systems.
How It Functions in a Formulation
When sodium bicarbonate is combined with a suitable acid such as citric acid and the mixture contacts water, an acid-base reaction releases carbon dioxide and produces the characteristic fizz of an effervescent product. Finished-product behaviour depends on the balance of bicarbonate, acid, moisture, particle size and other formulation variables.
Safety and Tolerance
Its practical suitability depends on the finished formulation and concentration. The source does not support interpreting effervescence itself as evidence of a therapeutic effect.
What the Source Supports
The source supports sodium bicarbonate as a buffering, deodorising, abrasive and effervescent-formulation ingredient. Fizz is a formulation phenomenon and does not by itself establish a health benefit.