This citric acid is not your typical powder. It is the harder to find and super fine which makes them best for bath bombs. Our Citric Acid is derived from corn. Commonly used in cosmetic formulas to create a more balanced and neutralized pH. When mixed in appropriate amounts with baking soda, it produces a chemical reaction that leads to the fizz in bath bombs. We only stock Jungbunzlauer F6000 material.