What are the different types of baking soda available in the market?

The main types of baking soda available in the market are regular baking soda, aluminum-free baking soda, and baking powder. Regular baking soda is the most common and versatile type used for baking and cleaning. Aluminum-free baking soda is preferred by some people who are sensitive to aluminum. Baking powder is a mixture of baking soda and an acid, often used as a leavening agent in baking recipes.