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GMS Powder (Glycerol Monostearate) – Emulsifier & Opacifier for Creams and Lotions

Glycerol Monostearate (GMS) is a waxy, white flake or powder that works as an excellent non-ionic emulsifier and thickening agent in oil-in-water emulsions. Commonly used in lotions, creams, conditioners, and serums, it helps stabilize formulations and improve their texture. GMS also enhances the moisturizing effect by forming a protective layer on the skin or hair. Ideal for beginner and professional formulators alike, it can be used with other emulsifiers like cetyl alcohol or stearic acid for enhanced results.

📊 Technical Data:

INCI Name: Glycerol Monostearate
CAS Number: 31566-31-1
Solubility: Dispersible in hot water, soluble in oils
Add Phase: Oil phase (heat required)
pH Stability: 4.5 – 8.0
Processing Temperature: 70°C – 75°C
Appearance: White powder or flakes
Odor: Mild, fatty odor
Molecular Formula: C21H42O4
Molecular Weight: ~358.57 g/mol
Flash Point: >200°C
Density: ~0.97 g/cm³
Chemical Type: Monoester
Functional Groups: Ester
Primary Cosmetic Uses: Emulsions, creams, lotions, hair conditioners