Polyglyceryl-6 Palmitate (Emulsifier)

Polyglyceryl-6 Palmitate – Non-Ionic Emulsifier and Emollient for Cosmetics, Personal Care, and Food

Chemical Structure and Synthesis
Polyglyceryl-6 palmitate is a non-ionic ester produced by the esterification of polyglycerin-6 (a polymer of six glycerol units) with palmitic acid (hexadecanoic acid, C16:0), a saturated fatty acid commonly derived from palm oil and other vegetable sources. The synthesis can be represented as:
(Gly)₆–OH + CH₃(CH₂)₁₄COOH → (Gly)₆–O–CO–(CH₂)₁₄CH₃ + H₂O
By controlling reaction conditions, the degree of esterification and the hydrophilic-lipophilic balance (HLB) of the product can be tailored to meet specific formulation requirements.

Physicochemical Properties

• Amphiphilic – balances hydrophilic polyglycerol head and lipophilic palmitate chain, reducing interfacial tension.

• Emulsifying activity – stabilizes oil-in-water (O/W) emulsions, providing fine, uniform textures.

• Skin conditioning – acts as an emollient, smoothing and softening skin by filling intercorneocyte spaces and reducing friction.

• Texturizing effect – increases viscosity and improves the tactile properties of cosmetic products.

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

• Biodegradable and derived from renewable plant-based sources.

Applications

• Skin care: Creams, lotions, moisturizers, sunscreens – provides stable emulsions with light, non-greasy feel, improves skin conditioning and texture.

• Hair care: Shampoos, conditioners – offers mild cleansing and conditioning.

• Cleansing products: Body washes, facial cleansers – delivers gentle cleansing with a pleasant skin feel.

• Color cosmetics: Foundations, primers – enhances pigment dispersion and application.

• Food industry: Used as a food emulsifier and texturizer in various applications.

• Other: Suitable for use in microemulsions and as a co-emulsifier in complex formulations.

Key Benefits

• Effective O/W emulsification with stable, fine textures.

• Provides emollient, skin-softening, and moisturizing properties.

• Improves product spreadability and sensory feel.

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

• Biodegradable and environmentally friendly.

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

Recommended Use
Typical usage levels range from 1–5% of the formulation, depending on the desired emulsion stability, viscosity, and skin feel. For optimal performance, dissolve in the oil phase at elevated temperatures (60–70°C) before emulsification. Can be combined with co-emulsifiers and thickeners for tailored rheology.

Safety and Handling

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

• Low irritation potential; well-tolerated by skin and eyes.

• 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.