Science
Mechanism of Action
This ingredient works by significantly reducing surface tension, enabling immiscible liquids like oil and water to combine into stable emulsions. As a surfactant, it aids in dissolving and lifting makeup and impurities from the skin, ensuring an even distribution of product while also acting as a solubilizer for various cosmetic components.
Research
Clinical Evidence
Medium confidence5%
Key findings
- 01 Frequently utilized in cleansing balm formulations to efficiently remove makeup, particularly in water-in-oil systems.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Maintain storage below 80°C. Optimal stability is achieved at room temperature, protected from direct sunlight and excessive heat, ensuring a shelf life of at least 2 years.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that related PEG fatty esters, including PEG-10 Isostearate, are safe when formulated to be non-irritating. While generally exhibiting low oral and dermal toxicity and minimal irritation to intact human skin, cases of sensitization and nephrotoxicity have been observed in burn patients treated with PEG-based creams. A general cautionary note for all ethoxylated ingredients is the potential for trace contamination by toxic impurities like ethylene oxide and 1,4-dioxane.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-10 Isostearate is a valuable emulsifier and cleansing agent, supporting stable formulations and effective makeup removal, deemed safe for use on intact skin when formulated appropriately, though potential impurity concerns are noted for ethoxylated compounds.
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References
Sources