Citric acid

Other names: Citric acid

Harm score: 2 (Derivatives of natural substances)

Citric acid is a natural organic compound found in lemon and other citrus fruits. It is known primarily for its strong acidic properties and specific taste. The structural formula of citric acid is C6H8O7, and is therefore made up of six carbon atoms, eight hydrogen atoms and seven oxygen atoms. It is also sometimes called E330, which is the name for a food additive. It was first isolated in 1784 by the chemist Carl Wilhelm Scheele.

Citric acid is used in many different products. Among the most common are foods and beverages, where it is encountered as a preservative or acidity regulator. Due to its ability to bind metals, it is used in the production of cheese, where it helps to improve the properties of the final product. In the pharmaceutical industry, citric acid is a component of many drugs and vitamins, especially B vitamins. It is also a popular ingredient in cosmetic products such as soaps, shampoos, creams and even some types of make-up, where it acts as an antioxidant. Last but not least, it is also used as an eco-friendly cleaning agent or as a component of some types of plastics and paints.