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Propylene glycol (C3H8O2; CAS no. 57-55-6) is a chemical compound, usually a tasteless, odorless clear liquid. It is used to absorb extra water and maintain moisture in certain medicines, cosmetics, or food products; as a solvent for food colors and flavors; as a food grade antifreeze; and to make artificial smoke for use in firefighters' training and theatrical productions. Propylene glycol is also found in hand sanitizers, anti-bacterial lotions, and just about everything that has to do with acetyl rubbing alcohol. Exposure to excess amounts of ethylene or propylene glycol can damage the kidneys, heart, and nervous system. Despite this, it is the main ingredient (after water) in many cosmetic products, including baby wipes. bubble baths and shampoos.
Safety
The Food and Drug Administration (FDA) has determined propylene glycol to be "generally recognized as safe" for use in food, cosmetics, and medicines. Similar to ethylene glycol, propylene glycol affects the body's chemistry by increasing the amount of acid, potentially resulting in metabolic problems. However, larger amounts of the substance are needed to cause this effect. Eating or drinking very large amounts can result in death, while large amounts can result in nausea, convulsions, slurred speech, disorientation, and heart and kidney problems.
Propylene glycol is a clear liquid used in antifreeze and de-icing solutions. Exposure to excess amounts of ethylene or propylene glycol can damage the kidneys, heart, and nervous system. Despite this, it is the main ingredient (after water) in many cosmetic products, including baby wipes. bubble baths and shampoos.
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