Polyglyceryl-7 Stearate (PGE-7 MS)

Polyglyceryl-7 Monostearate – Non-Ionic O/W Emulsifier for Light and Homogeneous Emulsions

Basic Information

• INCI Name: Polyglyceryl-7 Stearate

• Appearance: Typically a pale yellow to off-white waxy solid or paste

• HLB Value: ~10–11 (O/W emulsifier)

• Solubility: Dispersible in water; soluble in oils and organic solvents

• Storage: Store in tightly sealed containers in a cool, dry place, protected from moisture and light

Overview
Polyglyceryl-7 monostearate is a non-ionic surfactant produced by the selective esterification of polyglycerin (with an average of seven glycerol units) with one molecule of stearic acid. This structure provides an extended hydrophilic chain, which improves water solubility and enables the formation of light, elegant emulsions. The increased number of glycerol units enhances compatibility with aqueous phases while maintaining good oil affinity.

Key Properties

• Non-ionic – compatible with a wide range of ingredients and pH levels.

• Forms light, homogeneous O/W emulsions with a pleasant skin feel.

• Good skin compatibility and mildness – suitable for sensitive skin.

• Improved water solubility compared to analogues with fewer glycerol units.

• Excellent dispersing and stabilizing properties.

• PEG-free, biodegradable, and derived from renewable plant-based sources.

Applications

• Cosmetics and personal care: Used as a primary or co-emulsifier in O/W emulsions, including lotions, creams, milks, sunscreens, and makeup removers. Provides light textures with uniform distribution of active ingredients.

• Hair care: Incorporated into conditioners and styling products for improved spreadability and conditioning.

• Pharmaceuticals: Employed in topical formulations and ointments as a mild emulsifier.

• Household products: Used in mild cleaning formulations and fabric softeners.

• Industrial: Applied as a dispersant and stabilizer in specialty chemical formulations.

Key Benefits

• Creates light, non-greasy emulsions with a pleasant skin feel.

• Good skin compatibility and mildness – suitable for sensitive skin and baby care.

• Enhanced water solubility due to the extended hydrophilic chain.

• Effective emulsification and stabilization of O/W systems.

• PEG-free, biodegradable, and eco-friendly.

• Compatible with a wide range of cosmetic and pharmaceutical ingredients.

• Provides uniform distribution of active components.

Recommended Use
Typical usage levels range from 1–5% of the formulation, depending on the desired emulsion stability and texture. For optimal performance, dissolve in the oil phase at elevated temperatures (60–70°C) before emulsification.

Safety and Handling

• Generally recognized as safe for use in cosmetics at recommended concentrations.

• Low irritation potential; well-tolerated by skin.

• Avoid contact with strong oxidizers and acids.

• Store in a cool, dry place, away from direct sunlight.

• Use appropriate personal protective equipment (gloves, safety goggles) when handling.

Quality Assurance
Each batch is tested for acid value, saponification value, and emulsification performance to ensure consistent quality.