Science
Mechanism of Action
This ingredient primarily improves skin feel and product texture, yielding a silky, smooth application. Its efficacy is largely attributed to linoleic acid, a critical component for maintaining a robust skin barrier by incorporating into ceramides (specifically CER[EOS]) and regulating epidermal differentiation. This process promotes essential lipid production, which in turn boosts skin hydration and supports potential wound healing. Additionally, it acts as a dispersing agent, ensuring uniform pigment distribution in color cosmetics.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
As an ester containing linoleic acid, Isostearyl Linoleate exhibits chemical reactions characteristic of carboxylic acids and alkanes/alkenes, including potential for reduction, esterification, metal salt formation, and alkoxylation. A specific optimal pH range for its stability has not been explicitly determined.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded that alkyl esters, including Isostearyl Linoleate, are safe for use under current practices and concentrations, provided they are formulated to be non-irritating. No specific maximum concentration has been set by the CIR. The Scientific Committee on Consumer Safety (SCCS) has not published a specific opinion. It is recognized in FDA's UNII and EPA CompTox databases.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Isostearyl Linoleate is a valuable emollient for dry, sensitive, and normal skin, enhancing barrier function and product texture, though its medium comedogenicity warrants consideration for oily or acne-prone skin types.
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References
Sources