Science
Mechanism of Action
This ingredient functions by forming intercellular lamellar liquid crystals with a bilayer membrane structure within the skin. This action effectively reinforces the skin barrier, significantly improving its capacity to lock in moisture and defend against external aggressors. It also exhibits humectant properties and a high water-binding capacity, forming a protective film on the skin's surface to retain moisture and shield against irritants. Furthermore, it contributes to a calm and cool sensation on the skin.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 A human cumulative irritation patch test involving 38 subjects observed no irritation at a 1.5% concentration in a facial essence formulation.
- 02 A Human Repeated Insult Patch Test (HRIPT) on 102 subjects demonstrated no irritant or sensitizing potential at 5% concentration in a face cream, using a closely related Phytosteryl/Behenyl/Octyldodecyl Lauroyl Glutamate.
- 03 Another HRIPT with 219 subjects confirmed no irritation or sensitization at 5.999% concentration in a mixture.
- 04 Manufacturer's tests suggest superior efficacy compared to petrolatum in promoting the recovery of damaged skin and improving rough skin conditions, though specific concentrations for this benefit were not detailed.
Transparency
Dusting Analysis
This ingredient is utilized in products such as face powders (up to 5%) and aerosol deodorants (up to 0.1%). The CIR Expert Panel noted that in aerosol applications, most droplets or particles are not respirable to an appreciable amount, minimizing inhalation concerns.
The Formula
Formulation
Stability
Specific stability data for DIOCTYLDODECETH-5 LAUROYL GLUTAMATE, including optimal pH or incompatibilities, were not found. However, general glutamate compounds may convert to pyroglutamate at a pH range of 2-3.5 and above room temperature, indicating a need for careful formulation within highly acidic conditions.
Safety
Safety Profile
The CIR Expert Panel concluded that this ingredient, within a group of related phytosteryl glutamates, is safe in current practices of use and concentration as described in their July 2023 assessment. It is recognized as safe by regulatory bodies including the European Cosmetics Regulation and the U.S. Food and Drug Administration. Studies indicate it rarely causes allergic reactions or sensitivity, making it suitable for sensitive skin. It is generally considered non-irritating, although highly sensitive skin might theoretically experience mild reactions at elevated concentrations. Manufacturers are advised to minimize heavy metal impurities in accordance with FDA and EPA limits.
Your Skin
Skin Compatibility
Our Assessment
Verdict
DIOCTYLDODECETH-5 LAUROYL GLUTAMATE is a valuable emollient and skin conditioner, highly effective at reinforcing the skin barrier and promoting hydration with a very low risk of irritation or sensitization across all skin types.
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