Science
Mechanism of Action
This ingredient operates through a dual-action mechanism. The water-soluble PEG-8 ester component functions as a humectant, attracting and retaining moisture in the skin, and as a solubilizer, enabling the integration of sparingly water-soluble components into aqueous formulations. Concurrently, the sesame oil-derived portion delivers significant emollient benefits, smoothing and softening the skin by fortifying its lipid barrier with fatty acids and phytosterols. It further contributes antioxidant, antimicrobial, and anti-inflammatory properties, providing comprehensive skin protection against environmental stressors.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Formulations containing this ingredient should be developed to be non-irritating. Studies on related nanoemulsions indicate pH values suitable for skincare applications.
Conflicts
- oxidizing agents (nitrates, oxidizing acids, chlorine bleaches)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that PEGylated oils, including SESAME SEED OIL PEG-8 ESTERS, are safe for use in cosmetics when formulated to be non-irritating. While a specific maximum concentration is not stipulated for this particular ingredient, PEGylated oils are generally employed at concentrations below 50% in leave-on products. The base Sesamum Indicum (sesame) seed oil, and related cosmetic ingredients, have been previously assessed by the CIR Expert Panel and found safe, showing no evidence of skin irritation, sensitization, teratogenicity, or carcinogenicity at typical cosmetic exposure levels.
Your Skin
Skin Compatibility
Our Assessment
Verdict
SESAME SEED OIL PEG-8 ESTERS is a valuable, CIR-certified safe ingredient offering a multifaceted approach to skin health, combining emollient, humectant, and solubilizing properties with the natural benefits of sesame oil.
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