Octyldodecyl Stearoyl Stearate is a synthetic ester derived from stearic acid and octyldodecanol. It is commonly used in cosmetic formulations for its emollient and skin-conditioning properties. This ingredient helps to create a smooth and soft feel on the skin while providing a protective barrier.

Chemical Composition and Structure:

Active Components: Composed of octyldodecanol (an alcohol) and stearic acid (a fatty acid), forming a diester.
Chemical Structure: The molecule consists of two stearic acid chains esterified with octyldodecanol. This structure contributes to its emollient properties.
Formula: C₃₀H₅₈O₄

Physical Properties:

Appearance: Typically a clear to slightly opaque liquid or solid.
Odor: Generally neutral or very mild.
Solubility: Insoluble in water but soluble in oils and fats.
pH: Typically neutral, as it does not significantly affect the pH of formulations.

Production Process:

Synthesis: Octyldodecyl Stearoyl Stearate is synthesized through the esterification of stearic acid with octyldodecanol.
Purification: The product is purified to remove any impurities and by-products.
Formulation: It is then incorporated into cosmetic formulations, where it functions as an emollient and skin-conditioning agent.

Applications:

Skin Care: Used in creams, lotions, and other skin care products for its emollient properties. It helps to moisturize and soften the skin, providing a smooth texture.
Cosmetic Products: Added to makeup products to enhance texture, spreadability, and skin feel. It helps to stabilize and improve the consistency of cosmetic formulations.

Environmental and Safety Considerations:

Environmental Impact: The production and use of Octyldodecyl Stearoyl Stearate should follow environmentally responsible practices to minimize ecological impact.
Safety: This ingredient is generally regarded as safe for use in cosmetics and personal care products when used as directed. Individuals with known sensitivities to esters or similar compounds should exercise caution.

INCI:


Skin conditioning agent - Emollient. Emollients have the characteristic of enhancing the skin barrier through a source of exogenous lipids that adhere to the skin, improving barrier properties by filling gaps in intercorneocyte clusters to improve hydration while protecting against inflammation. In practice, they have the ability to create a barrier that prevents transepidermal water loss. Emollients are described as degreasing or refreshing additives that improve the lipid content of the upper layers of the skin by preventing degreasing and drying of the skin. The problem with emollients is that many have a strong lipophilic character and are identified as occlusive ingredients; they are oily and fatty materials that remain on the skin surface and reduce transepidermal water loss. In cosmetics, emollients and moisturisers are often considered synonymous with humectants and occlusives.

Skin conditioning agent. It is the mainstay of topical skin treatment as it has the function of restoring, increasing or improving skin tolerance to external factors, including melanocyte tolerance. The most important function of the conditioning agent is to prevent skin dehydration, but the subject is rather complex and involves emollients and humectants that can be added in the formulation.
Synonyms:

CAS: 90052-75-8