Citric acid is a weak organic acid that occurs naturally in produce, such as citrus fruits. It is used in food, cosmetics, and cleaning products. Share on Pinterest vkbhat/Getty Images Citric acid is ...

Citric acid naturally occurs in citrus fruits like lemons, limes, and oranges. Manufactured citric acid is produced from a type of mold called Aspergillus niger and is commonly used as a food additive ...