Propylene Glycol (PG)

Propylene Glycol (PG) is a synthetic organic compound that belongs to the class of glycols, which are chemical compounds with two hydroxyl (-OH) groups. It is a clear, colorless, odorless liquid that is miscible with water. PG has a wide range of applications due to its properties, including its ability to absorb water, act as a solvent, and lower the freezing point of liquids.

Food and Beverage Industry: PG is commonly used as a food additive (E1520) to maintain moisture, improve texture, and enhance flavor in various food products. It is considered safe for consumption and is often found in items like baked goods, processed foods, beverages, and food colorings.
Pharmaceuticals: PG is used as a solvent and a carrier in various pharmaceutical formulations, such as oral and injectable drugs, topical creams, and oral solutions.
Cosmetics and Personal Care Products: It can be found in cosmetics, skin care products, and toiletries due to its ability to retain moisture and improve the texture of products like lotions, shampoos, and deodorants.
E-Cigarettes and Vaping: PG is one of the main ingredients in e-liquids used in electronic cigarettes and vaping devices. It helps create the vapor that is inhaled by users.
Antifreeze and Coolants: PG is used as a component in automotive antifreeze and engine coolant formulations due to its ability to lower the freezing point of the liquid, preventing damage to engines and cooling systems in cold temperatures.
Industrial Applications: PG is used in various industrial applications, such as in hydraulic fluids, deicing solutions, and as a heat transfer fluid.
Detergents and Cleaning Products: It is used in some household and industrial cleaning products to enhance the solubility of other ingredients and improve the overall effectiveness of the product.
Petroleum Industry: PG is sometimes used as a component in drilling fluids and as a lubricant additive.
It's important to note that while PG is generally recognized as safe for its intended uses, some individuals may be sensitive to it and experience skin irritation or other adverse reactions. As with any chemical, proper handling, usage, and precautions should be followed to ensure safety. Always consult product labels and safety data sheets for specific information related to its use and potential hazards.