Eating foods or drinking liquids containing formaldehydeĮnzymes in the body break down formaldehyde into formate (formic acid), which can be further broken down into carbon dioxide.Inhaling it (the main way people are exposed).People can be exposed to formaldehyde by: Humans and most other living organisms also make small amounts of formaldehyde as part of normal metabolic processes. While formaldehyde is found naturally in small amounts in some foods (including fruits), it can also be added as a preservative to food, as well as being produced as a result of cooking and smoking. These have been found in cosmetics, soaps, shampoos, lotions and sunscreens, and cleaning products. Sometimes, even when formaldehyde is not an ingredient in a product, substances that release formaldehyde are. It can also be used as a preservative in some products, such as antiseptics, medicines, and cosmetics. When dissolved in water it is called formalin, which is commonly used as an industrial disinfectant and as a preservative in funeral homes and medical labs.
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