Description

Polyglyceryl-3 Dioleate is a functional cosmetic ingredient widely utilized as an emulsifier in a diverse range of skincare and makeup formulations. This ingredient is formed by the esterification of polyglycerin-3 with oleic acid, producing an ester called 1,2,3-Propanetriol, homopolymer, 9-(Z)-octadecenoates at a 1:2 molar ratio with an average of 3 moles of glycerol. It is favored for its ability to stabilize oil-in-water and water-in-oil emulsions, improving the texture and hydration of cosmetic products.

Chemical Composition and Structure

This ester integrates the hydrating benefits of polyglycerin-3, known for its ability to attract and retain moisture, with the emollient properties of oleic acid, a monounsaturated fatty acid that enhances skin penetration and moisturization. The product effectively forms a barrier on the skin, helping to lock in moisture and improve the spreadability of cosmetics.

Physical Properties

Polyglyceryl-3 Dioleate generally appears as a viscous, clear to slightly yellowish liquid. It is highly soluble in oils and demonstrates moderate solubility in water, making it highly effective in both lipophilic and hydrophilic phases of emulsions.

Production Process

Synthesis: The synthesis involves the esterification of polyglycerin-3 with oleic acid. This chemical reaction is conducted under controlled conditions, utilizing specific catalysts and temperature settings to ensure the efficient formation of the desired ester linkage.
Purification: Following synthesis, the product is purified through various methods to eliminate unreacted materials and by-products, ensuring the purity necessary for cosmetic use.
Quality Control: Rigorous testing is carried out on the final product to assess its purity, stability, and performance in various formulations. These tests typically include evaluations of emulsion stability, compatibility with other ingredients, and performance under different conditions.

Applications

Cosmetic Products: Employed in lotions, creams, and sunscreen formulations where it serves as an effective emulsifier, enhancing the consistency and feel of products.
Skin Care: Particularly useful in products intended for dry skin, as it helps to moisturize and form a protective barrier that maintains skin hydration.
Makeup: Used in foundations and concealers to improve their application and wear time, providing a smooth, even coverage.

Environmental and Safety Considerations

Polyglyceryl-3 Dioleate is considered safe for use in cosmetic products and is generally well-tolerated by the skin. It is non-irritating and suitable for all skin types, including sensitive skin. Derived from natural sources, such as oleic acid, it is also regarded as an environmentally friendly ingredient. Usage within recommended concentrations ensures safety and effectiveness.

INCI


Surfactant - Emulsifying agent. Emulsions are thermodynamically unstable and are used to soothe or soften the skin and emulsify, so they need a specific, stabilising ingredient. This ingredient forms a film, lowers the surface tension and makes two immiscible liquids miscible. A very important factor affecting the stability of the emulsion is the amount of the emulsifying agent. Emulsifiers have the property of reducing the oil/water or water/oil interfacial tension, improving the stability of the emulsion and also directly influencing the stability, sensory properties and surface tension of sunscreens by modulating the filmometric performance.
Synonyms:

CAS: 79665-94-4