Core Application Areas

　　1. Food Industry (Food-grade Propylene Glycol, complying with GB 2760 standards)

　　Humectant: Used in bread, pastries, candies, etc., to prevent drying and hardening by binding water through hydroxyl groups, extending shelf life (e.g., addition in mooncakes ≤3.0g/kg);

　　Solvent/Carrier: Dissolves flavors, pigments, preservatives (e.g., sodium benzoate), ensuring uniform dispersion of additives (e.g., dissolving essence in carbonated beverages to avoid layering);

　　Thickener: Improves the texture of ice cream and jams, increasing viscosity without being sticky.

　　2. Pharmaceutical Field

　　Injection Solvent: Dissolves water-insoluble drugs (e.g., vitamins, hormones) and acts as a suspending agent for injectable suspensions (e.g., using propylene glycol in progesterone injections to increase solubility);

　　Topical Base: Acts as a humectant and transdermal penetration enhancer in ointments and creams, helping drugs penetrate the skin (e.g., reducing moisture loss in burn ointments);

　　Antifreeze Agent: Used for low-temperature storage of blood products and vaccines to prevent cell damage from freezing (far lower toxicity than ethylene glycol, offering higher safety).

　　3. Cosmetics and Daily Chemicals

　　Moisturizing Ingredient: In skincare products (face creams, masks), shampoos, and body washes, maintains moisture in skin/hair by locking in water; feels fresher than glycerin (glycerin has high viscosity and tends to be sticky);

　　Solvent/Blending Agent: Dissolves fragrances and preservatives (e.g., parabens), ensuring uniform texture in lotions and perfumes (e.g., dissolving waxes in lipsticks to improve smoothness of application);

　　Toothpaste Additive: Lowers the freezing point of toothpaste (prevents hardening in winter) while keeping the paste moist and non-drying.

　　4. Industrial Field

　　Antifreeze Agent: Used in automotive antifreeze and central air conditioning coolant; low freezing point (-59℃) and low toxicity (compared to ethylene glycol, propylene glycol is less harmful to humans and animals);

　　Resin Plasticizer: Reacts with polyesters and polyurethanes to improve resin flexibility (e.g., used in PVC films to reduce brittleness);

　　Tobacco Humectant: Maintains moisture in tobacco leaves to prevent breakage and enhances the combustion stability of cut tobacco.