Science
Mechanism of Action
This hydrophobic ingredient primarily works by forming a protective, vapor-permeable film on the skin's surface, which significantly reduces trans-epidermal water loss and provides a barrier against environmental elements. Its pronounced viscoelasticity lends shine and slipperiness, while its emollient properties smooth and soften the skin. Additionally, as a surfactant and emulsifying agent, it stabilizes oil-in-water emulsions by lowering interfacial tension, ensuring consistent product texture and application. It also imparts UV resistance and a non-greasy feel.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
As an ester (laurate), this ingredient may be susceptible to degradation at extreme pH values, either very acidic or very alkaline. While specific optimal pH ranges are not provided for Hydroxyethyl Dimethicone Laurate, stability for related PEG-Dimethicone is suggested within a functional pH range of 5.5-8.5. It effectively functions as an emulsifying agent to stabilize oil-in-water mixtures, with the concentration being critical for emulsion stability. It can serve as a non-volatile alternative to cyclomethicone.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel considers this ingredient safe for cosmetic use at concentrations up to 15%, provided formulations are non-irritating. Its high molecular weight suggests minimal skin absorption. However, data are insufficient to determine its safety for use in products that may be incidentally inhaled, such as those applied via airbrush devices. The U.S. FDA recognizes it as a skin protector with a good degree of safety at low concentrations. Conversely, the European Union Ecolabel program has reported this substance as persistent in the environment, not anaerobically degradable, suspected of damaging fertility, and potentially causing long-lasting harmful effects to aquatic life, with clear evidence of endocrine disruption observed in at least one animal study. EWG also highlights high contamination concerns, particularly with Cyclopentasiloxane and Cyclotetrasiloxane.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While providing excellent emollient and film-forming benefits for the skin, Hydroxyethyl Dimethicone Laurate raises significant concerns regarding environmental persistence, potential reproductive toxicity, and endocrine disruption, making its overall suitability questionable for precision skincare.
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