Polyglyceryl-3 Stearate/Sebacate Crosspolymer is a complex cosmetic ingredient designed primarily for use as an emulsifier, stabilizer, and texture enhancer in a variety of skincare and makeup products. It is created through a crosslinking reaction involving Polyglycerin-3, Sebacic Acid, and Stearic Acid. This innovative polymer is engineered to improve the performance and sensory attributes of cosmetic products by enhancing viscosity, providing emulsion stability, and delivering a luxurious feel.

Chemical Composition and Structure

This crosspolymer combines the multifunctional properties of polyglycerin-3—a polymer known for its excellent humectant properties—with the unique characteristics of sebacic acid and stearic acid. Sebacic acid, a dicarboxylic acid, is known for its flexibility and enhancing film-forming properties, while stearic acid, a saturated fatty acid, contributes to the viscosity and stability of formulations. The crosslinking of these molecules forms a network that can effectively stabilize various cosmetic formulations and improve their textural properties.

Physical Properties

Polyglyceryl-3 Stearate/Sebacate Crosspolymer typically appears as a viscous, semi-solid gel or cream. It is compatible with both aqueous and oily phases, enabling it to form stable emulsions that enhance the product’s application experience and end-user feel.

Production Process

Crosslinking Reaction: The production involves the controlled crosslinking of Polyglycerin-3 with sebacic acid and stearic acid. This process requires precise conditions to facilitate the formation of a stable polymer network.
Purification: Following synthesis, the crosspolymer is subjected to thorough purification to ensure the removal of unreacted components and by-products, thereby achieving a high purity level suitable for cosmetic use.
Quality Control: Rigorous testing is conducted on the final product to assess its purity, stability, and performance in cosmetic formulations. These tests often include evaluations of rheological properties, emulsion stability, and compatibility with other ingredients.

Applications

Cosmetic Products: Extensively used in creams, lotions, and other emollient products where it acts as an effective emulsifier and stabilizer, helping to maintain the integrity of the product over time and under various storage conditions.
Skin Care: Ideal for use in moisturizing creams and anti-aging formulations, providing a rich, velvety texture and enhancing skin feel.
Makeup: Employed in foundations and concealers to improve their spreadability, adherence, and overall aesthetic quality, resulting in a smooth, even application.

Environmental and Safety Considerations

Polyglyceryl-3 Stearate/Sebacate Crosspolymer 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. The use of naturally derived ingredients like polyglycerin-3 and stearic acid contributes to its profile as an environmentally friendly ingredient. Proper usage within recommended concentrations is essential to ensure safety and effectiveness.

INCI


Binder agent. Ingredient that is used in cosmetic, food and pharmaceutical products as an anti-caking agent with the function of making the product in which it is incorporated silky, compact and homogenous. The binder, either natural such as mucilage, gums and starches or chemical, may be in the form of a powder or liquid.

Emulsion stabiliser. Emulsions are thermodynamically unstable. Emulsion stabilisers improve the formation and stability of single and double emulsions. as well as their shelf-life. It should be noted that in the structure-function relationship, the molar mass of the ingredient used plays an important role.

Film-forming agent. It produces, upon application, a very thin continuous film with an optimal balance of cohesion, adhesion and stickiness on skin, hair or nails to counteract or limit damage from external phenomena such as chemicals, UV rays and pollution.

Surfactant - Foam booster. It has the effect of introducing gas bubbles into the water and affects the cleaning process by helping to spread the cleanser. Since sebum has an inhibiting effect on the bubble, more foam is produced in the second shampoo.

Dispersing agent - Non surfactant. Ingredient that can change and stabilize the surface characteristics of the suspension, covering the surface. It also works as a hair fixative.
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CAS: 1884382-74-4