Polyglyceryl-6 Distearate (PGE-6 DS)

Polyglyceryl-6 Distearate – Balanced Non-Ionic Emulsifier for Stable Cosmetic and Pharmaceutical Emulsions

Basic Information

• INCI Name: Polyglyceryl-6 Distearate

• CAS Number: 34424-97-0

• Synonyms: Distearic acid, diester with hexaglycerol; Hexaglyceryl distearate; Hexaglycerol distearate

• Molecular Formula: C₅₄H₁₀₆O₁₅

• Molecular Weight: ~995.42 g/mol

• Appearance: Pale yellow waxy solid

• HLB Value: ~9.0

• Melting Point: 50–58°C

• EINECS Number: 252-010-1

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

Overview
Polyglyceryl-6 distearate is a non-ionic surfactant produced by the partial esterification of polyglycerin (with an average of six glycerol units) with two molecules of stearic acid. This diester structure provides a balanced hydrophilic-lipophilic profile, making it an effective oil-in-water (O/W) emulsifier. It reduces interfacial tension between water and oil phases, enabling the formation of stable emulsions with a soft, powdery finish. It is a gentle, PEG-free emulsifier of natural origin, suitable for sensitive skin and baby care products.

Key Properties

• Balanced hydrophilic-lipophilic nature – suitable for O/W emulsions.

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

• Reduces interfacial tension – stabilizes oil-water systems.

• Good thermal stability – maintains performance at elevated temperatures.

• Broad compatibility – works well with other cosmetic and pharmaceutical ingredients.

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

• Provides a soft, powdery after-feel.

Applications

• Cosmetics and personal care: Used as a primary or co-emulsifier in O/W creams, lotions, gels, sunscreens, and makeup products to stabilize emulsions, improve texture, and enhance the distribution of active ingredients.

• Pharmaceuticals: Employed in topical ointments and gels as an emulsifier and consistency agent.

• Baby care: Suitable for gentle formulations due to its mildness.

• Cleansing products: Acts as a mild cleansing agent.

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

Key Benefits

• Effective O/W emulsification with excellent stability.

• Reduces interfacial tension between oil and water.

• Good thermal stability and broad ingredient compatibility.

• Mild, non-irritating – suitable for sensitive skin.

• PEG-free, biodegradable, and of natural origin.

• Provides a soft, powdery, non-greasy finish.

• Versatile – suitable for a wide range of formulations.

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, melting point, and emulsification performance to ensure consistent quality.