Propylene glycol (PG), also known as 1,2-propanediol, is a synthetic liquid substance that absorbs water. It’s colorless, nearly odorless, and has a slightly sweet taste. Due to its low toxicity and versatile properties, it’s used across many industries.
Here are the main uses of propylene glycol:
1. Food and Beverage Industry
• Food additive (E1520): Used as a humectant (retains moisture), solvent, and preservative.
• Carrier for flavors and colors: Helps dissolve ingredients that don’t mix well with water.
• Beverage processing: Sometimes used in flavorings and extracts.
2. Pharmaceutical and Cosmetic Applications
• Drug formulations: Acts as a solvent for oral, injectable, and topical drugs.
• Skin care products: Used in lotions, creams, shampoos, deodorants, and more as a moisturizer or stabilizer.
• Toothpaste and mouth