Propylene glycol (PG) is a versatile chemical with various applications:
*Pharmaceuticals and Healthcare:*
1. *Solvent*: Used as a solvent for active ingredients in medications.
2. *Humectant*: Helps retain moisture in pharmaceutical products.
*Food and Beverages:*
1. *Food additive*: Used as a humectant, solvent, and stabilizer.
2. *Flavorings*: Used in flavorings and extracts.
*Cosmetics and Personal Care:*
1. *Moisturizer*: Helps retain moisture in skin and hair care products.
2. *Solvent*: Used in fragrances, perfumes, and skincare products.
*Industrial Applications:*
1. *Antifreeze*: Used in HVAC systems and as a coolant.
2. *De-icing*: Used in de-icing solutions for aircraft and vehicles.
*Other Uses:*
1. *E-cigarettes*: Used as a base ingredient in e-liquids.