Glyceryl monostearate (GMS) , also known as   monostearin , is a monoester derived from   glycerol   and   stearic acid . It is a white, waxy solid or powder that is widely used as an   emulsifier, thickening agent, and stabilizer   in food, cosmetics, and pharmaceuticals.

Key Properties:

• Molecular Weight:   358.56 g/mol

• Appearance:   White, flaky or powdery solid

• Melting Point:   ~55-60°C (131-140°F)

• Solubility:

  • Insoluble in water but forms gels when heated and cooled

  • Soluble in organic solvents (e.g., ethanol, oils)

• HLB Value:   ~3-4 (hydrophilic-lipophilic balance, making it more lipophilic)

Applications:

1. Food Industry

   • Acts as an   emulsifier   in baked goods, ice cream, margarine, and whipped toppings.

   • Improves texture and shelf life in bread, cakes, and dairy products.

   • Used as a   thickener   and   anti-caking agent .

2. Cosmetics & Personal Care

   • Found in creams, lotions, and makeup as an   emollient   and   stabilizer .

   • Helps blend oil and water phases in formulations.

3. Pharmaceuticals

   • Used in tablets as a   binder   and   controlled-release agent .

   • Acts as a   lubricant   in capsules.

4. Industrial Uses

   • Used in plastics and candles as a lubricant and release agent.