![Citric Acid](http://silvermoonbathandspa.com/cdn/shop/products/citric-acid_{width}x.jpg?v=1637249715)
A necessity for bath bomb makers, citric acid is a natural preservative that exists in many different fruits, vegetables and other products. It can also serve as a PH adjuster, which makes it a great ingredient for personal care products, coloring, and many other solutions.