Propylene Glycol USP/EP (United States Pharmacopeia/European Pharmacopoeia grade) is a high-purity form of propylene glycol used in pharmaceutical, food, and cosmetic applications. Here are some of its key uses:
# **1. Pharmaceutical Industry**
- **Solvent and carrier** – Used in oral, injectable, and topical medications to dissolve active ingredients.
- **Excipient in drug formulations** – Helps improve drug stability and absorption.
- **Preservative** – Extends the shelf life of liquid medications.
- **Humectant** – Prevents drying in creams, gels, and ointments.
# **2. Food and Beverage Industry**
- **Food additive (E1520)**