Science
Mechanism of Action
As a primary emulsifying agent, PEG-45 Stearate facilitates the stable integration of immiscible liquids like oils and water in cosmetic products. It acts as a surfactant, reducing surface tension to ensure even product distribution on the skin. Furthermore, it helps enhance product consistency, aids in cleansing, and imparts a softening, emollient feel to the skin.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Key findings
- 01 Clinical evaluations demonstrated that PEG Stearates, including PEG-45 Stearate, did not induce irritation or sensitization responses when tested at concentrations up to 25%.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
PEG Stearates are considered relatively stable compounds. However, their ether oxygens possess potential reactivity, and their ester bonds are susceptible to enzymatic cleavage. This ingredient functions effectively as a hydrophilic emulsifier.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed PEG Stearates, including PEG-45 Stearate, safe for use in cosmetics at current concentrations and practices. While generally well-tolerated, it is advised not to apply PEGs and their derivatives to damaged skin. Manufacturers are encouraged to continuously ensure the removal of impurities such as ethylene oxide and 1,4-dioxane.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-45 Stearate is a valuable functional ingredient, serving as an effective emulsifier and surfactant that enhances product stability and texture, with a low risk of irritation across most skin types, including sensitive.
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References
Sources