Description

Polyglyceryl-3 Laurate is a versatile cosmetic ingredient used primarily as an emulsifier and skin conditioner in a wide array of skincare and makeup products. It is synthesized by the reaction of polyglycerin-3 with lauric acid, resulting in an ester known as 1,2,3-Propanetriol, homopolymer, dodecanoates, at a 1:1 molar ratio with an average of 3 moles of glycerol. This ingredient is highly valued for its ability to improve the texture and stability of cosmetic formulations while also providing moisturizing and skin-softening benefits.

Chemical Composition and Structure

Polyglyceryl-3 Laurate combines the hydrating properties of polyglycerin-3, a multi-functional humectant, with the emollient properties of lauric acid, a medium-chain fatty acid that helps to enhance skin feel and barrier function. The esterification process yields a molecule that efficiently stabilizes oil-in-water emulsions and helps in the distribution of other active ingredients across the skin.

Physical Properties

Polyglyceryl-3 Laurate appears as a clear to slightly yellowish viscous liquid. It is characterized by its excellent solubility in oils and moderate solubility in water, making it particularly suitable for creating stable emulsions that provide a smooth and non-greasy feel on the skin.

Production Process

Synthesis: The synthesis involves the controlled reaction of polyglycerin-3 with lauric acid to form the desired ester. This process requires precise temperature management and catalysts to promote efficient ester linkage and ensure a high-quality product.
Purification: After synthesis, the compound undergoes various purification steps to remove any unreacted substances and impurities, achieving high purity and quality suitable for cosmetic use.
Quality Control: Rigorous testing is conducted on the final product to assess its purity, efficacy, and compatibility with other cosmetic ingredients. These tests typically include evaluations of emulsion stability, pH measurements, and compatibility tests.

Applications

Cosmetic Products: Used in creams, lotions, and serums, where it acts as an effective emulsifier, helping to blend and stabilize the mixture of oil and water components, enhancing the consistency and feel of the product.
Skin Care: Particularly beneficial in moisturizing formulations aimed at dry or sensitive skin, where it contributes to skin softness and hydration.
Makeup: Employed in makeup products to improve application properties, ensuring smooth, even coverage and extending wear.

Environmental and Safety Considerations

Polyglyceryl-3 Laurate 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 fatty acids, it is considered environmentally friendly. Usage within recommended concentrations is essential to ensure safety and optimal performance.

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: 51033-31-9