Polyglyceryl-10 decaisostearate is an ester formed by the reaction of a glycerin polymer containing 10 glycerin units with isostearic acid. This compound is valued for its emollient, emulsifying, and moisturizing properties, making it useful in various cosmetic and pharmaceutical applications.
CHEMICAL COMPOSITION AND STRUCTURE
Chemically, polyglyceryl-10 decaisostearate consists of a polyglycerol backbone with ten glycerin units esterified with isostearic acid. this structure imparts unique moisturizing and emulsifying properties to the compound:
Polyglycerol Backbone: a polymer of glycerin, which imparts hydrophilic (water-attracting) properties.
Isostearic Acid: a branched fatty acid that adds hydrophobic (water-repelling) properties, enhancing the compound’s ability to blend oil and water phases.
PHYSICAL PROPERTIES
Appearance: generally a clear to pale yellow liquid.
Odor: characteristic mild odor.
Solubility: insoluble in water, but dispersible in oils and some organic solvents.
Density: varies based on specific formulation and concentration of the ester.
Viscosity: moderate to high, depending on concentration, contributing to its thickening properties in formulations.
PRODUCTION PROCESS
Preparation of Polyglyceryl-10: glycerin is polymerized to form polyglyceryl-10.
Esterification: polyglyceryl-10 is reacted with isostearic acid under controlled temperature and pressure conditions to form the ester.
Filtration and Purification: the resulting ester is filtered and purified to remove impurities and obtain a high-quality product.
Packaging and Storage: the final product is packaged and stored in a cool, dry place to maintain its properties.
APPLICATIONS
Medical: used in topical formulations for its emollient and moisturizing properties, helping to improve skin health and repair the skin barrier.
Cosmetics: commonly found in creams, lotions, emulsions, and hair care products as an emollient, emulsifier, and thickening agent. enhances the texture, spreadability, and stability of cosmetic products.
Skin Care: improves hydration and skin texture in products like moisturizers, serums, and creams.
Hair Care: provides conditioning effects and improves the spreadability of hair care formulations.
Makeup: used in foundations, lipsticks, and other color cosmetics for improved application and feel.
Industrial: utilized as a non-toxic, biodegradable emulsifier and stabilizer in various industrial formulations, including lubricants and surface treatment agents.
ENVIRONMENTAL AND SAFETY CONSIDERATIONS
Biodegradability: polyglyceryl-10 decaisostearate is biodegradable, making it environmentally friendly and suitable for eco-conscious formulations.
Toxicity: generally considered non-toxic and safe for use in personal care and pharmaceutical products. however, it is essential to ensure that the product is free from contaminants and complies with regulatory standards.
Allergenicity: as with all chemical and natural compounds, individual reactions of intolerance or allergy cannot be excluded.
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.
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