Science
Mechanism of Action
This ingredient operates primarily as a nonionic surfactant, effectively lowering the surface tension between different cosmetic components. This enables the seamless mixing of typically immiscible oil and water phases, forming stable emulsions. Additionally, it aids in dissolving substances that would otherwise be insoluble in a given solvent and helps water bind with oily residues and dirt for efficient rinsing.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Exhibits broad pH stability, rendering it suitable for formulations across neutral, mildly alkaline, and acidic pH systems.
Conflicts
- Should not be applied to compromised or damaged skin due to potential systemic absorption and toxicity concerns.
- Potential for cross-sensitization with other PEG derivatives given their structural similarities.
Safety
Safety Profile
The CIR Expert Panel confirmed PEG Sorbitan/Sorbitol Fatty Acid Esters, including PEG-6 Sorbitan Oleate, are safe for use in cosmetics up to 25% concentration. This safety assessment carries a critical caveat that the ingredient must not be used on damaged skin. While generally possessing low potential for skin irritation or sensitization, concerns exist regarding trace amounts of 1,4-dioxane, a byproduct of ethoxylation, which can be minimized through purification. Instances of kidney toxicity were observed in burn patients treated with PEG-based topical ointments, underscoring the importance of avoiding use on compromised skin.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-6 Sorbitan Oleate is a valuable and versatile nonionic surfactant, essential for stable emulsion formation and effective cleansing in various cosmetic applications, provided it is not used on compromised skin.
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